Clamping mechanism

Abstract

The utility model relates to the technical field of clamping mechanisms, in particular to a clamping mechanism which comprises a bottom plate, a positioning assembly is arranged on the right side of the top end of the bottom plate, the positioning assembly comprises two sliding blocks, the sliding blocks are embedded in the bottom plate through sliding grooves, threaded columns are connected to the top ends of the sliding blocks, supporting plates are movably arranged on the outer sides of the threaded columns in a sleeved mode, and the supporting plates are fixed to the bottom plate. The top end of the threaded column is sleeved with a nut in a threaded mode, and an extrusion assembly is installed in the center of the top end of the bottom plate and comprises a fixing base. A mechanical part is placed between the two supporting plates, the threaded rotating shaft rotates and moves in the fixing base to push the pressing block, the pressing block extrudes the mechanical part, the supporting plates are pushed after the mechanical part is stressed, then the side edges of the supporting plates extrude and position the mechanical part, and at the moment, the mechanical part is pressed by the pressing block, so that the mechanical part is pressed and positioned. And the pressing block is matched with the two supporting plates so that the mechanical parts of different shapes can be fixed in a matched mode, and the clamping stability of the mechanical parts is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping mechanisms, in particular to a clamping mechanism. Background Art

[0002] A fixture is a tool used to fasten workpieces and fix parts in corresponding positions during processing. Fixture technology is developing towards high precision, high efficiency, modularity, combination, generality and economy. A fixture is also called a clamp. In a broad sense, it is a device used to conveniently and safely install workpieces in any process during the process.

[0003] In a production workshop, when some parts need to be assembled or processed, a clamp is often needed to clamp and fix the mechanical parts. However, in the prior art, the same clamping mechanism can only be used to clamp workpieces of fixed size. When the width and shape of the mechanical parts are different, a clamping device of corresponding size needs to be designed, that is, the universality of the clamping mechanism is poor. Therefore, a clamping mechanism is needed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology.

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

[0006] A clamping mechanism comprises a base plate, a positioning assembly is arranged on the right side of the top of the base plate, the positioning assembly comprises two sliders, the sliders are embedded in the base plate through sliding grooves, a threaded column is connected to the top of the slider, and a support plate is movably sleeved on the outer side of the threaded column, a nut is provided on the threaded sleeve at the top of the threaded column, an extrusion assembly is installed at the center position of the top of the base plate, the extrusion assembly comprises a fixed seat, a threaded shaft is inserted through a threaded hole on the side of the fixed seat, and a pressure block is movably installed at the end of the threaded shaft.

[0007] Preferably, a movable disk is connected to the bottom end of the fixed seat, and the movable disk is embedded in the bottom plate through a rotating groove. A threaded pin is inserted through a through hole on the side of the fixed seat, and the shaft end of the threaded pin is inserted into the bottom plate through the threaded hole. The threaded pin passes through the through hole of the fixed seat and is inserted into the threaded hole of the bottom plate for locking, thereby ensuring the stability of the fixed seat after adjustment.

[0008] Preferably, a threaded rod is inserted through a threaded hole on the side of the slider, one end of the threaded rod is rotatably mounted on the inner wall of the slide groove of the bottom plate, and the other end of the threaded rod passes through the inside of the bottom plate. The threaded rod rotates in the slide groove of the bottom plate, so that the two sliders can be controlled to move on the surface of the threaded rod.

[0009] Preferably, the cross-section of the support plate is Y-shaped, and a rubber pad is installed on the outer side of the forked end of the support plate through a groove. The rubber pad fits against the outer side of the mechanical part, thereby protecting the stress points of the mechanical part.

[0010] Preferably, movable column ends are provided at the ends of the two support plates, and the movable column ends are connected and fixed by a return spring, and the movable column ends of the support plate are pulled back by the rebound force of the return spring to control the rotation of the support plate.

[0011] Preferably, a fixing assembly is provided on the left side of the top of the base plate, and the fixing assembly includes a pressure plate, a tooth groove is opened on the inner side of the pressure plate, and the pressure plate is placed inside the cushion seat through the groove. The cushion seat and the pressure plate are fixed by fixing bolts. When the straight plate mechanical parts are placed between the pressure plate and the pressure block, the pressure block can move to clamp and fix the mechanical parts.

[0012] Preferably, an embedded strip is connected to the center position of the bottom end of the pressure plate, and the embedded strip is embedded in the inner wall of the seat groove through a guide groove. The embedded strip can be embedded in the guide groove of the seat to facilitate pre-fixation of the pressure plate.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. By setting up an extrusion component and a positioning component, it is possible to fix mechanical parts of various sizes. Compared with the traditional structure, this device places the mechanical parts between two support plates, and the threaded shaft rotates in the fixed seat to push the pressing block, so that the pressing block squeezes the mechanical parts. When the mechanical parts are subjected to force, the support plate is pushed, and then the side of the support plate squeezes and positions the mechanical parts. At this time, the pressing block cooperates with the two support plates to adapt to fix mechanical parts of different shapes, ensuring the stability of the clamping of the mechanical parts.

[0015] 2. By setting a slider and a threaded rotary rod, the adjustability of the device is improved. The device can control the relative movement of the two sliders by rotating the threaded rotary rod. The movement of the slider can drive the support plate to move through the threaded column, and then adjust the distance between the two support plates, which is convenient for expanding the adaptability to mechanical parts. At the same time, a fixed component is set at the other end of the base plate, and the movable disk is rotated to change the moving direction of the pressure block. Through the cooperation of the pressure block and the pressure plate, some straight plate mechanical parts can be clamped, further improving the universality of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the external structure of a clamping mechanism proposed by the utility model;

[0018] Figure 2 This is a three-dimensional disassembled structural diagram of an extrusion component and a positioning component in a clamping mechanism proposed by the utility model;

[0019] Figure 3 This is a three-dimensional partially disassembled structural schematic diagram of a positioning component in a clamping mechanism proposed by the utility model;

[0020] Figure 4 The present invention is a schematic diagram of a three-dimensional disassembled structure of a fixing component in a clamping mechanism.

[0021] In the figure: 1. bottom plate; 2. extrusion assembly; 21. fixed seat; 22. movable disk; 23. threaded shaft; 24. pressure block; 25. threaded pin; 3. positioning assembly; 31. slider; 32. threaded column; 33. nut; 34. support plate; 35. rubber pad; 36. threaded rod; 37. return spring; 4. fixing assembly; 41. cushion seat; 42. embedded strip; 43. pressure plate; 44. fixing bolt. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Reference Figure 1-4 A clamping mechanism includes a base plate 1, a positioning assembly 3 is arranged on the right side of the top of the base plate 1, the positioning assembly 3 includes two sliders 31, the sliders 31 are embedded in the base plate 1 through sliding grooves, a threaded column 32 is connected to the top of the slider 31, and a support plate 34 is movably sleeved on the outer side of the threaded column 32, a nut 33 is threadedly sleeved on the top of the threaded column 32, an extrusion assembly 2 is installed at the center position of the top of the base plate 1, the extrusion assembly 2 includes a fixed seat 21, a threaded shaft 23 is inserted through the side of the fixed seat 21 through a threaded hole, and a pressure block 24 is movably installed at the end of the threaded shaft 23.

[0024] A movable disk 22 is connected to the bottom end of the fixing seat 21, and the movable disk 22 is embedded in the bottom plate 1 through a rotating groove. A threaded pin 25 is inserted through a through hole on the side of the fixing seat 21, and the axial end of the threaded pin 25 is inserted into the bottom plate 1 through a threaded hole.

[0025] A threaded rod 36 is inserted through a threaded hole on the side of the slider 31 . One end of the threaded rod 36 is rotatably mounted on the inner wall of the slide groove of the bottom plate 1 , and the other end of the threaded rod 36 penetrates the inside of the bottom plate 1 .

[0026] The cross section of the support plate 34 is in a Y-shaped structure, and a rubber pad 35 is embedded in a groove on the outer side of the bifurcated end of the support plate 34 .

[0027] Movable column ends are provided at the ends of the two support plates 34 , and the movable column ends are connected and fixed by a return spring 37 .

[0028] A fixing assembly 4 is arranged on the left side of the top of the bottom plate 1, and the fixing assembly 4 includes a pressure plate 43, and a tooth groove is opened inside the pressure plate 43. The pressure plate 43 is placed inside the cushion seat 41 through the groove, and the cushion seat 41 and the pressure plate 43 are fixed by a fixing bolt 44.

[0029] An inner embedding strip 42 is connected to the center of the bottom end of the pressure plate 43 , and the inner embedding strip 42 is embedded in the inner wall of the groove of the cushion seat 41 through a guide groove.

[0030] By moving the movable disk 22 in the rotating groove of the bottom plate 1, the direction of the pressure block 24 can be easily changed. When the fixed seat 21 is adjusted, the threaded pin 25 can be inserted into the threaded hole of the bottom plate 1 after passing through the through hole of the fixed seat 21 to lock it, thereby ensuring the stability of the fixed seat 21 after adjustment. By rotating the threaded rotating rod 36 in the sliding groove of the bottom plate 1, the two sliders 31 can be controlled to move on the surface of the threaded rotating rod 36, thereby controlling the relative movement of the two support plates 34 to adjust the spacing between the two support plates 34. When the mechanical parts are placed between the forked ends of the two support plates 34, the rubber pad 35 can fit against the outside of the mechanical parts, thereby facilitating the adjustment of the mechanical parts. The stress points are protected. Under normal circumstances, the movable column end of the support plate 34 is pulled back by the rebound force of the reset spring 37 to control the rotation of the support plate 34, so that the left sides of the two support plates 34 are conveniently designed to be inclined. When the straight plate mechanical parts are placed between the pressure plate 43 and the pressure block 24, the pressure block 24 can move to clamp and fix the mechanical parts. The pressure plate 43 and the cushion seat 41 are connected by fixing bolts 44, which can facilitate the staff to disassemble, assemble and replace the pressure plate 43. When the pressure plate 43 is embedded in the groove of the cushion seat 41, the embedded strip 42 can be embedded in the guide groove of the cushion seat 41, which is convenient for pre-fixing the pressure plate 43 and plays a positioning role.

[0031] Working principle: According to the attached Figure 2 With attached Figure 3As shown, during use, the threaded rotary rod 36 can be rotated to make the slider 31 relatively move on the surface of the threaded rotary rod 36. The movement of the slider 31 can cooperate with the threaded column 32 to drive the support plate 34 to rotate. After the distance between the two support plates 34 is adjusted, the mechanical parts can be placed between the two support plates 34. At this time, the threaded rotary shaft 23 can be rotated. After the threaded rotary shaft 23 rotates and moves inside the fixed seat 21, it can push the pressing block 24 to move, and then the pressing block 24 presses one side of the mechanical parts. At the same time, the mechanical parts press the support plate 34, so that the support plate 34 rotates, and one side of the support plate 34 can press the side of the mechanical parts, so as to position the mechanical parts. The pressing block 24 cooperates with the support plate 34 to clamp and fix the mechanical parts.

[0032] Secondly, according to the attached Figure 2 With attached Figure 4 As shown, when fixing the mechanical parts of the straight plate, the fixing seat 21 can be rotated, and the fixing seat 21 drives the movable disk 22 to rotate 180° inside the base plate 1. At this time, the threaded pin 25 is rotated so that the axial end of the threaded pin 25 passes through the through hole of the fixing seat 21 and is inserted into the threaded hole of the base plate 1, thereby fixing the fixing seat 21. At this time, the threaded shaft 23 is rotated, and the threaded shaft 23 can push the pressure block 24 to move, so that the pressure block 24 cooperates with the pressure plate 43 to be fixed.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A clamping mechanism, comprising a base plate (1), characterized in that: A positioning assembly (3) is arranged on the right side of the top of the base plate (1), and the positioning assembly (3) comprises two sliders (31), and the sliders (31) are embedded in the base plate (1) through sliding grooves, and the top of the sliders (31) is connected to a threaded column (32), and a support plate (34) is movably sleeved on the outer side of the threaded column (32), and a nut (33) is threadedly sleeved on the top of the threaded column (32). An extrusion assembly (2) is installed at the center position of the top of the base plate (1), and the extrusion assembly (2) comprises a fixed seat (21), and a threaded shaft (23) is inserted through a threaded hole on the side of the fixed seat (21), and a pressure block (24) is movably installed at the end of the threaded shaft (23).

2. A clamping mechanism according to claim 1, characterized in that: The bottom end of the fixed seat (21) is connected to a movable disk (22), and the movable disk (22) is embedded in the bottom plate (1) through a rotating groove. A threaded pin (25) is inserted through a through hole on the side of the fixed seat (21), and the axial end of the threaded pin (25) is inserted into the bottom plate (1) through a threaded hole.

3. A clamping mechanism according to claim 1, characterized in that: A threaded rotating rod (36) is inserted through a threaded hole on the side of the sliding block (31); one end of the threaded rotating rod (36) is rotatably mounted on the inner wall of the sliding groove of the bottom plate (1); and the other end of the threaded rotating rod (36) passes through the inside of the bottom plate (1).

4. A clamping mechanism according to claim 1, characterized in that: The cross section of the support plate (34) is in a Y-shaped structure, and a rubber pad (35) is installed on the outer side of the bifurcated end of the support plate (34) through a groove embedded in the groove.

5. A clamping mechanism according to claim 4, characterized in that: Movable column ends are arranged at the ends of the two support plates (34), and the movable column ends are connected and fixed by a return spring (37).

6. A clamping mechanism according to claim 1, characterized in that: A fixing assembly (4) is arranged on the left side of the top end of the base plate (1), and the fixing assembly (4) comprises a pressure plate (43). A tooth groove is provided on the inner side of the pressure plate (43). The pressure plate (43) is placed inside the cushion seat (41) through the groove. The cushion seat (41) and the pressure plate (43) are fixed by a fixing bolt (44).

7. A clamping mechanism according to claim 6, characterized in that: An inner embedding strip (42) is connected to the center position of the bottom end of the pressure plate (43), and the inner embedding strip (42) is embedded in the inner wall of the groove of the cushion seat (41) through a guide groove.

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