Clamping mechanism of tapping machine

Abstract

The utility model relates to the technical field of clamping mechanisms, in particular to a tapping machine clamping mechanism, which comprises a turntable, three groups of clamping mechanisms, an unlocking mechanism and a mounting disc, the turntable is rotatably mounted at the top of the mounting disc, the three groups of clamping mechanisms are fixedly arranged at the edge position of the turntable in a scattering shape around the middle of the turntable, and two extension plates are welded at the edge of the mounting disc. The two groups of unlocking mechanisms are fixedly arranged at the edge position of the extension plate; a rotating disc type structure is adopted for circular machining, the three clamping mechanisms are matched for alternate operation, multiple steps of feeding, tapping and discharging can be synchronously carried out, the machining efficiency is effectively improved, meanwhile, the clamping mechanisms provide clamping force through elastic potential energy of springs, and higher stability and lower manufacturing cost are achieved by adopting an unpowered clamping mode; and meanwhile, the problems of winding and loosening of lines and air pipes in the rotating process of the turntable can be avoided.

Description

Technical Field

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

[0002] A tapping machine is a mechanical device used to process internal threads on materials such as metal and plastic. It cuts out threads by rotating a cutting tool (tap) and is suitable for thread processing in mass production and with high precision requirements. During the processing of the workpiece, in order to ensure that the workpiece is stable and does not move during the tapping process, the clamping mechanism of the tapping machine is usually used to fix the workpiece. Common clamping methods include mechanical clamping, hydraulic clamping and pneumatic clamping.

[0003] The clamping mechanism needs to ensure that sufficient clamping force is provided during the tapping process to prevent the workpiece from slipping or shifting, thereby ensuring the accuracy and quality of thread processing. However, it still has certain problems: 1) The loading, tapping, and unloading steps cannot be carried out synchronously, which will delay the processing effect and is not suitable for mass production; 2) More driving parts are required for clamping, which has high manufacturing costs and poor stability in the later stage; Therefore, in view of the above situation, there is an urgent need to develop a tapping machine clamping mechanism to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of the present utility model is to provide a tapping machine clamping mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solutions: a tapping machine clamping mechanism, comprising a turntable, a clamping mechanism, an unlocking mechanism, and a mounting plate, wherein the turntable is rotatably mounted on the top of the mounting plate, three sets of clamping mechanisms are fixedly arranged at the edge of the turntable in a scattered manner around the middle of the turntable, two extension plates are welded to the edge of the mounting plate, and two sets of unlocking mechanisms are fixedly arranged at the edge of the extension plates;

[0006] The clamping mechanism includes a mounting seat a, a mounting seat b, a linear guide, a screw, a spring and a positioning nut. The mounting seat a is fixed to the top edge of the turntable, and an extension block is welded to the edge of the turntable. The mounting seat b is slidably installed on the turntable and the extension block through a linear guide. A fixed clamp is detachably installed on one side of the mounting seat a, and a dynamic clamp is detachably installed on one side of the mounting seat b. The material is clamped and installed between the fixed clamp and the dynamic clamp. The screw is horizontally fixed to the side wall of the mounting seat a, and the other end of the screw is passed through the edge of the mounting seat b and is slidably connected to the mounting seat b. The positioning nut is sleeved on the end of the screw away from the mounting seat a, and the spring is sleeved on the position where the screw is located between the mounting seat b and the positioning nut.

[0007] Preferably, three discharge holes are provided at the edge of the turntable, and a discharge pipe is provided at the edge of the mounting plate. Specifically, the turntable rotates 120 degrees at a time when working, and each time it stops, one discharge hole is aligned with the discharge pipe, and the discharge hole has the same inner diameter as the discharge pipe.

[0008] Preferably, the unlocking mechanism includes a cylinder a, a guide column, a mounting seat c, a cylinder b and an unlocking piece. Cylinder a is vertically installed on the bottom edge of the extension plate, the guide column is passed through the edge of the extension plate, the mounting seat c is fixed to the guide column and the top of the piston rod of cylinder a, and cylinder b is horizontally fixed to the top of the mounting seat c. The unlocking piece is fixed to the end of the piston rod of cylinder b. Specifically, the unlocking mechanism can drive the mounting seat b and the movable clamp away from the fixed clamp, thereby achieving the effect of automatically opening the clamp, which is convenient for loading and unloading.

[0009] Preferably, a protrusion is fixed on the top edge of the mounting seat b, and a slot is provided at the bottom of the unlocking member, which is adapted to the protrusion. Specifically, the unlocking member cooperates with the protrusion to achieve the effect of driving the mounting seat b to move.

[0010] Preferably, the middle position of the fixed clamp and the movable clamp is vertically aligned with the discharge hole. Specifically, when the movable clamp is opened, the material can fall into the discharge pipe below through the middle discharge hole, thereby realizing automatic discharge of the finished product after processing.

[0011] Compared with the prior art, the present invention provides a tapping machine clamping mechanism with the following beneficial effects:

[0012] It adopts a turntable structure for cyclic processing and cooperates with three clamping mechanisms for alternating operations. It can realize the simultaneous loading, tapping and unloading steps, effectively improving processing efficiency. At the same time, the clamping mechanism uses the elastic potential energy of the spring to provide clamping force, and adopts a non-powered clamping method with higher stability and lower manufacturing cost. At the same time, it can avoid the problems of wiring and air pipe entanglement and loosening during the rotation of the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0014] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0015] Figure 2 This is a diagram showing the position relationship between the turntable and the mounting plate of the utility model;

[0016] Figure 3 This is one of the schematic diagrams of the clamping mechanism structure of the utility model;

[0017] Figure 4 This is the second schematic diagram of the clamping mechanism structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the unlocking mechanism structure of the utility model.

[0019] In the figure: 10, turntable; 101, discharge hole; 102, extension block; 20, clamping mechanism; 201, mounting seat a; 202, fixed clamp; 203, mounting seat b; 2031, protrusion; 204, movable clamp; 205, material; 206, linear guide; 207, screw; 208, spring; 209, positioning nut; 30, unlocking mechanism; 301, cylinder a; 302, guide column; 303, mounting seat c; 304, cylinder b; 305, unlocking piece; 40, mounting plate; 401, extension plate; 402, discharge pipe. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] Example:

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a tapping machine clamping mechanism, comprising a turntable 10, a clamping mechanism 20, an unlocking mechanism 30 and a mounting plate 40. The turntable 10 is rotatably mounted on the top of the mounting plate 40. Three groups of clamping mechanisms 20 are scattered around the middle of the turntable 10 and fixed at the edge of the turntable 10. Two extension plates 401 are welded to the edge of the mounting plate 40. Two groups of unlocking mechanisms 30 are fixed at the edge of the extension plate 401.

[0024] The clamping mechanism 20 includes a mounting seat a201, a mounting seat b203, a linear guide rail 206, a screw 207, a spring 208 and a positioning nut 209. The mounting seat a201 is fixed to the top edge of the turntable 10. The edge of the turntable 10 is welded with an extension block 102. The mounting seat b203 is slidably mounted on the turntable 10 and the extension block 102 through the linear guide rail 206. One side of the mounting seat a201 is detachably mounted with a fixed clamp 202, and one side of the mounting seat b203 is detachably mounted. A movable clamp 204 is installed, and a material 205 is clamped and installed between the fixed clamp 202 and the movable clamp 204. The screw 207 is horizontally fixed on the side wall of the mounting seat a201. The other end of the screw 207 is passed through the edge of the mounting seat b203 and is slidingly connected to the mounting seat b203. The positioning nut 209 is sleeved on the end of the screw 207 away from the mounting seat a201, and the spring 208 is sleeved on the position of the screw 207 between the mounting seat b203 and the positioning nut 209.

[0025] Preferably, three discharge holes 101 are provided at the edge of the turntable 10, and a discharge pipe 402 is passed through the edge of the mounting plate 40. Specifically, the turntable 10 rotates 120 degrees at a time when working, and each time it stops, there is a discharge hole 101 aligned with the discharge pipe 402, and the inner diameter of the discharge hole 101 is consistent with that of the discharge pipe 402.

[0026] Preferably, the unlocking mechanism 30 includes a cylinder a301, a guide column 302, a mounting seat c303, a cylinder b304 and an unlocking piece 305. The cylinder a301 is vertically installed on the bottom edge of the extension plate 401, the guide column 302 is passed through the edge of the extension plate 401, the mounting seat c303 is fixed to the top of the guide column 302 and the piston rod of the cylinder a301, the cylinder b304 is horizontally fixed to the top of the mounting seat c303, and the unlocking piece 305 is fixed to the end of the piston rod of the cylinder b304. Specifically, the unlocking mechanism 30 can drive the mounting seat b203 and the movable clamp 204 away from the fixed clamp 202, thereby realizing the automatic opening of the clamp, which is convenient for loading and unloading.

[0027] Preferably, a protrusion 2031 is fixed to the top edge of the mounting seat b203, and a slot is provided at the bottom of the unlocking member 305, which is adapted to the protrusion 2031. Specifically, the unlocking member 305 cooperates with the protrusion 2031 to achieve the effect of driving the mounting seat b203 to move.

[0028] Preferably, the middle position of the fixed clamp 202 and the movable clamp 204 is vertically aligned with the discharge hole 101. Specifically, when the movable clamp 204 is opened, the material 205 can fall into the discharge pipe 402 below through the middle discharge hole 101, realizing automatic discharge of the finished product after processing.

[0029] Working principle: During operation, the unlocking mechanism 30 that is not adjacent to the discharge tube 402 opens the movable clamp 204 adjacent to the clamping mechanism 20. The staff performs material loading at this work and puts the material to be processed 205 between the fixed clamp 202 and the movable clamp 204. After the unlocking mechanism 30 is disengaged, the clamping mechanism 20 automatically clamps the material 205. Then the turntable 10 rotates to the next station for tapping operation. After the tapping is completed, it rotates to the last station. The unlocking mechanism 30 adjacent to the station opens the movable clamp 204 of the clamping mechanism 20. The tapped material 205 will be separated from between the fixed clamp 202 and the movable clamp 204 and introduced into the discharge tube 402 below through the discharge hole 101, realizing automatic discharge of the finished product. Finally, the turntable 10 rotates to the initial loading station to realize multi-station synchronous operation. It should be noted here that the clamping mechanism 20 is driven to open by the unlocking mechanism 30, and the cylinder b304 of the unlocking mechanism 30 drives the unlocking piece 305 to move horizontally to just above the protrusion 2031 of the mounting seat b203, and then the cylinder a301 drives the cylinder b304 and the unlocking piece 305 to descend. At this time, the unlocking piece 305 is nested on the protrusion 2031, and then the cylinder b304 drives the unlocking piece 305 to reset, thereby cooperating with the protrusion 2031 to pull the mounting seat b203 to move horizontally along the linear guide rail 206, so that the movable clamp 204 and the fixed clamp 202 are separated. When the unlocking mechanism 30 is separated from the clamping mechanism 20, the spring 208 releases its elastic potential energy and drives the mounting seat b203 to move axially toward the mounting seat a201 until the end faces of the fixed clamp 202 and the movable clamp 204 are in close contact. The compression stroke of the spring 208 can be adjusted by rotating the positioning nut 209, thereby controlling the size of its elastic potential energy.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A tapping machine clamping mechanism, characterized in that: The invention comprises a rotating disk (10), a clamping mechanism (20), an unlocking mechanism (30) and a mounting disk (40); the rotating disk (10) is rotatably mounted on the top of the mounting disk (40); three groups of the clamping mechanisms (20) are fixedly arranged at the edge of the rotating disk (10) in a scattered manner around the middle of the rotating disk (10); two extension plates (401) are welded to the edge of the mounting disk (40); and two groups of the unlocking mechanisms (30) are fixedly arranged at the edge of the extension plates (401); The clamping mechanism (20) comprises a mounting seat a (201), a mounting seat b (203), a linear guide rail (206), a screw rod (207), a spring (208) and a positioning nut (209); the mounting seat a (201) is fixed on the top edge of the turntable (10); an extension block (102) is welded to the edge of the turntable (10); the mounting seat b (203) is slidably mounted on the turntable (10) and the extension block (102) via the linear guide rail (206); a fixed clamp (202) is detachably mounted on one side of the mounting seat a (201); and a fixed clamp (202) is detachably mounted on one side of the mounting seat b (203). A movable clamp (204) is disassembled and installed, and a material (205) is clamped and installed between the fixed clamp (202) and the movable clamp (204). The screw (207) is horizontally fixed on the side wall of the mounting seat a (201), and the other end of the screw (207) is passed through the edge of the mounting seat b (203) and is slidably connected to the mounting seat b (203). The positioning nut (209) is sleeved on one end of the screw (207) away from the mounting seat a (201), and the spring (208) is sleeved on the position of the screw (207) between the mounting seat b (203) and the positioning nut (209).

2. The tapping machine clamping mechanism according to claim 1, characterized in that: Three discharge holes (101) are provided at the edge of the turntable (10), and a discharge pipe (402) is provided at the edge of the mounting plate (40).

3. The tapping machine clamping mechanism according to claim 1, characterized in that: The unlocking mechanism (30) comprises a cylinder a (301), a guide post (302), a mounting seat c (303), a cylinder b (304) and an unlocking member (305), wherein the cylinder a (301) is vertically mounted on the bottom edge of the extension plate (401), the guide post (302) is arranged at the edge of the extension plate (401), the mounting seat c (303) is fixed to the top of the guide post (302) and the piston rod of the cylinder a (301), the cylinder b (304) is horizontally fixed to the top of the mounting seat c (303), and the unlocking member (305) is fixed to the end of the piston rod of the cylinder b (304).

4. The tapping machine clamping mechanism according to claim 3, characterized in that: A protrusion (2031) is fixedly provided on the top edge of the mounting seat b (203), and a slot is provided on the bottom of the unlocking member (305), and the slot is adapted to fit the protrusion (2031).

5. The tapping machine clamping mechanism according to claim 1, characterized in that: The middle position of the fixed clamp (202) and the movable clamp (204) is vertically aligned with the blanking hole (101).

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