Clamp of steel pipe rapid positioning cutting machine

Abstract

The utility model provides a steel pipe rapid positioning cutting machine clamp, and relates to the technical field of cutting machine clamps. A vertically-arranged epsilon-shaped connecting frame is welded to the bottom of the main clamping plate, a kidney-shaped connecting frame is rotationally connected between the tail ends of two connecting rods, and a stress shaft protruding backwards for supporting is welded to the middle of the kidney-shaped connecting frame. Two ground contact supporting frames are symmetrically welded to the bottoms of the left end and the right end of the cutting machining table, two transverse supporting bottom plates are welded between the bottom side parts of the two ground contact supporting frames in a front-back spaced mode, and two vertical positioning shafts are symmetrically welded to the top end of the middle part of the transverse supporting bottom plate on the rear side. Through power transmission of a stress shaft, a rectangular sliding frame is driven by a treading driving frame to slide downwards, a kidney-shaped connecting frame can be driven to slide downwards through jacking and pressing, two main clamping plates are controlled to move close to each other in the opposite direction to automatically clamp a workpiece, the clamping operation steps of the whole clamp are simplified, and use is convenient, fast and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machine clamps, in particular to a steel pipe fast positioning cutting machine clamp. Background Art

[0002] In the processing and manufacturing of automotive parts, such as the production and processing of return oil steel pipes, return oil hoses, high and low pressure oil pipes, steering steel pipes and air pipes, it is necessary to cut the pipes to a fixed length, which requires the use of a cutting machine; in order to ensure the stability and safety of the cutting operation, the pipes need to be positioned, and it is necessary to configure a positioning fixture suitable for the pipes on the cutting machine.

[0003] In order to achieve rapid tightening and loosening of workpieces, existing cutting machine clamps have mostly abandoned the traditional threaded push-and-lock positioning method, and generally use manual or foot-operated methods to directly drive the clamping plates and other components to slide and tighten. However, the clamping force that can be continuously output by the hands or feet on the clamping plates is always limited, resulting in poor clamping stability when cutting large diameter or volume workpieces during long-term use. The workpiece is prone to loosening, shifting, or even falling off, causing safety accidents. Utility Model Content

[0004] In view of this, the utility model provides a steel pipe quick positioning cutting machine clamp to solve the problem of poor clamping stability, easy loosening, displacement or even falling off of the workpiece due to manual or foot-operated direct driving of the clamping plate and other components to implement sliding and tightening, resulting in safety accidents.

[0005] The technical solution proposed by the utility model is: a steel pipe fast positioning cutting machine fixture, specifically comprising: a cutting processing table, the top of which is symmetrically and slidably mounted with two main clamping plates that are pulled and reset by tension springs;

[0006] A vertically arranged U-shaped connecting frame is welded at the bottom of the main splint, two connecting rods are symmetrically rotatably connected to the middle positions of the longitudinal support rods at the bottom of the two U-shaped connecting frames, a waist-round connecting frame is rotatably connected between the tail ends of the two connecting rods, and a force-bearing shaft protruding backwards is welded at the middle position of the waist-round connecting frame;

[0007] Two ground-contacting support frames are symmetrically welded to the bottom of the left and right ends of the cutting processing table, and two cross-bracing bottom plates are welded between the bottom parts of the two ground-contacting support frames at intervals in the front and back, wherein two vertical positioning shafts are symmetrically welded to the top of the middle part of the rear cross-bracing bottom plate, and the waist-round connecting frame is slidably matched with the two vertical positioning shafts.

[0008] Furthermore, two auxiliary pressure frames are installed on the cutting table at intervals in a sliding manner and are reset by pulling a tension spring. The auxiliary pressure frames are U-shaped and slide up and down. The bottom ends of the two auxiliary pressure frames are connected to a rectangular sliding frame by four tension springs. Two force transmission short columns are symmetrically welded on the left and right side rods of the rectangular sliding frame.

[0009] Two shaft rings are symmetrically welded and hoisted at the bottom of the left and right side rods of the rectangular sliding frame. The two shaft rings are correspondingly slidably matched with two vertical positioning shafts and are spaced below the waist-round connecting frame.

[0010] Furthermore, a pedal drive frame is rotatably installed on the top of the cross-bracing base plate on the front side. The pedal drive frame is composed of a laterally supported rotating shaft, a pedal frame welded to the left end of the rotating shaft, and two strip drive frames welded at intervals and mounted on the main part of the rotating shaft, and two force transmission short columns are slidably matched with the two strip drive frames.

[0011] Furthermore, the rectangular sliding frame comes into contact with the force-bearing shaft when sliding down.

[0012] Furthermore, the tension springs used for pulling and resetting the two main splints are symmetrically connected between the left and right side parts of the cutting and processing table and the two main splints.

[0013] Furthermore, four longitudinal support connecting plates are welded symmetrically between the vertical parts of the two auxiliary pressure frames at intervals, and under normal conditions, the upper longitudinal support connecting plate is in contact with the cutting processing table;

[0014] The tension springs used for pulling and resetting the two auxiliary pressure frames are symmetrically and obliquely connected between the left and right side parts of the cutting processing table and the two longitudinal supporting connecting plates at the lower side.

[0015] Furthermore, the cutting processing table is provided with three slide grooves arranged in sequence along the front-to-back direction, and a cutting groove is provided between the two slide grooves on the front side, and the cutting groove and the slide groove are arranged in a transverse direction;

[0016] The vertical support rod of the mountain-shaped connecting frame is slidably matched with the sliding groove.

[0017] Furthermore, a secondary splint is welded to the top end of the vertical strut on the front side of the U-shaped connecting frame, and a spacing groove is provided between the two secondary splints and the two main splints. The spacing groove coincides with the cutting groove, and the two secondary splints are located at the rear side of the cutting groove.

[0018] The utility model provides a steel pipe fast positioning cutting machine fixture, which has the following beneficial effects:

[0019] When the utility model is in use, through the power transmission of the force-bearing shaft, the rectangular sliding frame slides downward when driven by the stepped driving frame, and the waist-round connecting frame can be driven to slide downward by the top pressure, so that the two main clamping plates are controlled to slide towards each other to automatically clamp the workpiece. This saves the trouble of additional manual force to slide and drive the two main clamping plates for clamping, helps to simplify the clamping operation steps of the entire clamp, and is convenient and efficient to use, so that the clamp can take into account quick tightening and loosening while ensuring stable fixation of the workpiece, and has good practicality.

[0020] In addition, the rectangular sliding frame is elastically connected to the two auxiliary pressure frames through four tension springs. When the two auxiliary pressure frames are pulled down and pressed against the workpiece in advance, the rectangular sliding frame can continue to stretch the four tension springs to slide downward, and continue to drive the force-bearing axis downward until the two main clamps are controlled to be normally clamped against the workpiece. Compared with the method of directly welding the rectangular sliding frame and the two auxiliary pressure frames or fixing them with other rigid connection means, it can avoid that when the two auxiliary pressure frames are pressed against the workpiece, they will not block and restrict the downward movement of the rectangular sliding frame, affecting the continuous indirect pushing of the two main clamps by the rectangular sliding frame, so that the two main clamps cannot be clamped in contact with the workpiece, which helps to ensure the normal and effective implementation of the joint drive tensioning function of the two main clamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0022] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached picture:

[0024] Figure 1 The overall rear side structure schematic diagram of the utility model is shown;

[0025] Figure 2 The overall front side structural schematic diagram of the utility model is shown;

[0026] Figure 3 The overall bottom side structural schematic diagram of the utility model is shown;

[0027] Figure 4 A schematic diagram of the auxiliary pressing frame structure of the utility model is shown;

[0028] Figure 5 A schematic diagram of the main plate structure of the utility model is shown;

[0029] Figure 6 The schematic diagram of the structure of the mountain-shaped connecting frame of the utility model is shown;

[0030] Reference numerals list

[0031] 1. Cutting table; 101. Ground support frame; 102. Horizontal support base plate; 103. Vertical positioning axis; 104. Cutting groove; 105. Slide groove;

[0032] 2. Main splint; 201. Secondary splint; 202. Mountain-shaped connecting frame; 203. Connecting rod; 204. Waist-shaped connecting frame; 2041. Load-bearing axis;

[0033] 3. Auxiliary pressing frame; 301. Rectangular sliding frame; 3011. Force transmission short column; 3012. Shaft ring; 302. Longitudinal bracing connecting plate;

[0034] 4. Pedal drive frame; 401. Pedal frame; 402. Strip drive frame. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Please refer to Figures 1 to 6 :

[0037] Embodiment 1:

[0038] The utility model proposes a steel pipe fast positioning cutting machine fixture, comprising: a cutting processing table 1, the top of the cutting processing table 1 is symmetrically slidably mounted with two main clamping plates 2 pulled and reset by tension springs, and the two main clamping plates 2 are used to clamp and fix the workpiece or pipe to be processed;

[0039] Among them, a vertically arranged mountain-shaped connecting frame 202 is welded to the bottom of the main splint 2, and two connecting rods 203 are symmetrically rotatably connected to the middle position of the longitudinal support rods at the bottom of the two mountain-shaped connecting frames 202, and a waist-round connecting frame 204 is rotatably connected between the tail ends of the two connecting rods 203, and a force-bearing shaft 2041 protruding backward is welded to the middle position of the waist-round connecting frame 204. The two mountain-shaped connecting frames 202, the two connecting rods 203 and the waist-round connecting frame 204 are connected together to form two crank slider mechanisms. Through these two mechanisms, the waist-round connecting frame 204 that slides up and down can push and drive the two mountain-shaped connecting frames 202 and the two main splints 2 to slide left and right, so as to tighten or loosen the workpiece;

[0040] Two ground-contacting support frames 101 are symmetrically welded to the bottom of the left and right ends of the cutting processing table 1, and two horizontal support bottom plates 102 are welded between the bottom side parts of the two ground-contacting support frames 101 at intervals in the front and back, wherein two vertical positioning shafts 103 are symmetrically welded to the top of the middle part of the rear horizontal support bottom plate 102, and the waist-round connecting frame 204 is slidably matched with the two vertical positioning shafts 103.

[0041] Preferably, two auxiliary pressure frames 3 which are pulled and reset by tension springs are slidably installed at intervals in front and back on the cutting processing table 1. The auxiliary pressure frames 3 are U-shaped and slide up and down. The bottom ends of the two auxiliary pressure frames 3 are connected to a rectangular sliding frame 301 by four tension springs. Two force transmission short columns 3011 are symmetrically welded on the left and right side rods of the rectangular sliding frame 301. When the two auxiliary pressure frames 3 slide downward, the top cross bracing parts come into contact with the workpiece for auxiliary clamping and fixing the workpiece. This is used in conjunction with the two main clamping plates 2 to implement double and comprehensive clamping and fixing of the workpiece in the left and right directions and in the up and down directions, which significantly improves the clamping stability of the workpiece. Compared with the prior art, it can effectively cope with the stable cutting processing of large-diameter or large-volume workpieces, and reduce the probability of loosening, displacement and falling of the workpiece, thereby reducing the probability of safety accidents caused by the loosening, displacement and falling of the workpiece.

[0042] Two shaft rings 3012 are symmetrically welded and hoisted at the bottom of the left and right side rods of the rectangular sliding frame 301 . The two shaft rings 3012 are slidably matched with the two vertical positioning shafts 103 , and are spaced below the waist-round connecting frame 204 .

[0043] Preferably, a pedal drive frame 4 is rotatably installed on the top of the front side cross-bracing base plate 102. The pedal drive frame 4 is composed of a laterally supported rotating shaft, a pedal frame 401 welded to the left end of the rotating shaft, and two strip drive frames 402 welded at intervals and mounted on the main part of the rotating shaft. The two force transmission short columns 3011 are slidably matched with the two strip drive frames 402. Through the power transmission of the two strip drive frames 402 and the two force transmission short columns 3011, pressing the pedal drive frame 4 downward can push and drive the rectangular sliding frame 301 and the two auxiliary pressure frames 3 to slide downward to implement auxiliary fixation of the workpiece.

[0044] Preferably, when the rectangular sliding frame 301 slides down, it abuts against the force-bearing shaft 2041. Through the power transmission of the force-bearing shaft 2041, the rectangular sliding frame 301 is driven to slide downward by the stepped driving frame 4, and the waist-shaped connecting frame 204 can be driven to slide downward by the top pressure, so that the two main clamping plates 2 are controlled to slide toward each other to automatically clamp the workpiece. This saves the trouble of additional manual force to drive the two main clamping plates 2 to clamp, helps to simplify the clamping operation steps of the clamp as a whole, is convenient and efficient to use, and ensures that the clamp can be quickly loosened and tightened while ensuring stable fixation of the workpiece, and has better practicality.

[0045] The rectangular sliding frame 301 is elastically connected to the two auxiliary pressure frames 3 through four tension springs. When the two auxiliary pressure frames 3 are pulled down and pressed against the workpiece in advance, the rectangular sliding frame 301 can continue to stretch the four tension springs to slide downward, and continue to drive the force-bearing shaft 2041 downward until the two main clamps 2 are controlled to be normally clamped against the workpiece. Compared with the rectangular sliding frame 301 and the two auxiliary pressure frames 3 directly welded and fixed or fixed by other rigid connection means, it can avoid that when the two auxiliary pressure frames 3 are pressed against the workpiece, the rectangular sliding frame 301 is blocked and restricted from sliding down, affecting the continuous indirect pushing of the two main clamps 2 by the rectangular sliding frame 301, so that the two main clamps 2 cannot be clamped in contact with the workpiece, which helps to ensure the normal and effective implementation of the joint driving tensioning function of the two main clamps 2.

[0046] Preferably, the tension springs for pulling and resetting the two main plates 2 are symmetrically connected between the left and right side parts of the cutting and processing table 1 and the two main plates 2 .

[0047] Preferably, four longitudinal support connecting plates 302 are welded symmetrically between the vertical parts of the two auxiliary pressing frames 3 at intervals. Under normal conditions, the upper longitudinal support connecting plate 302 abuts against the cutting processing table 1 to limit the two auxiliary pressing frames 3 from sliding upward.

[0048] The tension springs used for pulling and resetting the two auxiliary pressure frames 3 are symmetrically and diagonally connected between the left and right side parts of the cutting processing table 1 and the two longitudinal supporting connecting plates 302 at the lower side.

[0049] Preferably, three slide grooves 105 arranged in sequence along the front-to-back direction are formed on the cutting processing table 1, and a cutting groove 104 is formed between the two front slide grooves 105, and the cutting groove 104 and the slide groove 105 are arranged horizontally;

[0050] The vertical support rods of the U-shaped connecting frame 202 are slidably matched with the sliding groove 105.

[0051] Preferably, on the basis of embodiment one, embodiment two is provided: a secondary splint 201 is welded to the top end of the vertical support rod on the front side of the mountain-shaped connecting frame 202, and a spacing groove is provided between the two secondary splints 201 and the two main splints 2, the spacing groove coincides with the position of the cutting groove 104, and the two secondary splints 201 are located on the rear side of the cutting groove 104, the two secondary splints 201 can clamp and fix the cut workpiece segment or pipe segment, especially to prevent the shorter workpiece segment or pipe segment from being centrifugally thrown away by the cutting wheel and injuring people after being cut, which helps to indirectly improve the safety of the cutting operation.

[0052] Working principle: The two main clamping plates 2 are used to clamp and fix the workpiece or pipe to be processed. When cutting, the cutting wheel is driven downward to make it contact with the clamped workpiece or pipe for rotational cutting, and the cutting wheel slides and cooperates with the cutting groove 104 when cutting downward;

[0053] The two mountain-shaped connecting frames 202, the two connecting rods 203 and the waist-shaped connecting frames 204 are connected together to form two crank slider mechanisms. Through these two mechanisms, the waist-shaped connecting frames 204 that slide up and down can push and drive the two mountain-shaped connecting frames 202 and the two main clamping plates 2 to slide left and right toward each other, so as to loosen or tighten the workpiece. When the two auxiliary pressing frames 3 slide downward, the top cross-bracing parts abut against the workpiece to implement auxiliary pressing and fixing of the workpiece. This can be used in conjunction with the two main clamping plates 2 to implement double and comprehensive pressing and fixing of the workpiece in the left and right directions and the up and down directions, thereby significantly improving the pressing stability of the workpiece.

[0054] Through the power transmission of two strip driving frames 402 and two force transmission short columns 3011, pressing down on the driving frame 4 can push and drive the rectangular sliding frame 301 and the two auxiliary pressure frames 3 to slide downward to assist in fixing the workpiece; through the power transmission of the force-bearing shaft 2041, the rectangular sliding frame 301 is driven to slide downward by the driving frame 4, and the waist-shaped connecting frame 204 can be driven to slide downward by pushing, thereby controlling the two main clamps 2 to slide toward each other and automatically clamp the workpiece.

[0055] In this article, there are a few points to note:

[0056] 1. The drawings of the embodiments of the present utility model only relate to the structures related to the embodiments of the present utility model, and other structures may refer to the usual designs.

[0057] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0058] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A steel pipe quick positioning cutting machine fixture, comprising: A cutting processing table (1), wherein the top of the cutting processing table (1) is symmetrically and slidably mounted with two main clamping plates (2) which are pulled and reset by tension springs; The invention is characterized in that a vertically arranged U-shaped connecting frame (202) is welded to the bottom of the main splint (2), two connecting rods (203) are symmetrically rotatably connected to the middle positions of the longitudinal support rods at the bottom sides of the two U-shaped connecting frames (202), a waist-shaped connecting frame (204) is rotatably connected between the tail ends of the two connecting rods (203), and a force-bearing shaft (2041) protruding backwards is welded to the middle position of the waist-shaped connecting frame (204); Two ground-contacting support frames (101) are symmetrically welded at the bottom of the left and right ends of the cutting processing table (1), and two horizontal support bottom plates (102) are welded at intervals between the bottom side parts of the two ground-contacting support frames (101), wherein two vertical positioning shafts (103) are symmetrically welded at the top of the middle part of the rear horizontal support bottom plate (102), and the waist-round connecting frame (204) is slidably matched with the two vertical positioning shafts (103).

2. A steel pipe rapid positioning cutting machine fixture according to claim 1, characterized in that: The cutting table (1) is provided with two auxiliary pressing frames (3) which are slidably installed at intervals in front and back and are reset by pulling of tension springs. The auxiliary pressing frames (3) are U-shaped and slide up and down. The bottom ends of the two auxiliary pressing frames (3) are connected to rectangular sliding frames (301) by four tension springs. Two force transmission short columns (3011) are symmetrically welded on the left and right side rods of the rectangular sliding frame (301). Two shaft rings (3012) are symmetrically welded and hoisted at the bottom of the left and right side rods of the rectangular sliding frame (301). The two shaft rings (3012) are slidably matched with two vertical positioning shafts (103) and are spaced below the waist-circular connecting frame (204).

3. The steel pipe quick positioning cutting machine fixture according to claim 1, characterized in that: A pedal drive frame (4) is rotatably mounted on the top of the front transverse support base plate (102). The pedal drive frame (4) is composed of a laterally supported rotating shaft, a pedal frame (401) welded to the left end of the rotating shaft, and two strip drive frames (402) welded at intervals and sleeved on the main body of the rotating shaft. Two force transmission short columns (3011) are slidably matched with the two strip drive frames (402).

4. A steel pipe rapid positioning cutting machine fixture according to claim 2, characterized in that: When the rectangular sliding frame (301) slides down, it comes into contact with the force-bearing shaft (2041).

5. The steel pipe rapid positioning cutting machine fixture according to claim 1, characterized in that: Tension springs for pulling and resetting the two main splints (2) are symmetrically connected between the left and right side parts of the cutting and processing table (1) and the two main splints (2).

6. A steel pipe rapid positioning cutting machine fixture according to claim 2, characterized in that: Four longitudinal support connecting plates (302) are welded symmetrically at intervals between the vertical parts of the two auxiliary pressure frames (3), and in a normal state, the upper longitudinal support connecting plate (302) is in contact with the cutting processing table (1); Tension springs for pulling and resetting the two auxiliary pressure frames (3) are symmetrically and diagonally connected between the left and right side parts of the cutting processing table (1) and the two longitudinal support connecting plates (302) at the lower side.

7. A steel pipe rapid positioning cutting machine fixture according to claim 1, characterized in that: The cutting processing table (1) is provided with three slide grooves (105) arranged in sequence along the front-to-back direction, and a cutting groove (104) is provided between the two front slide grooves (105), and the cutting groove (104) and the slide groove (105) are both arranged in a transverse direction; The vertical support rod of the mountain-shaped connecting frame (202) is slidably matched with the sliding groove (105).

8. A steel pipe rapid positioning cutting machine fixture according to claim 7, characterized in that: A secondary clamping plate (201) is welded to the top end of the vertical support rod on the front side of the mountain-shaped connecting frame (202), and a spacing groove is arranged between the two secondary clamping plates (201) and the two main clamping plates (2). The spacing groove and the cutting groove (104) are overlapped in position, and the two secondary clamping plates (201) are located at the rear side of the cutting groove (104).

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