Positioning mechanism of numerical control arc rolling machine

Abstract

The utility model discloses a positioning mechanism of a numerical control arc rolling machine, relates to the technical field of numerical control arc rolling machines, and aims to solve the problems that the arc rolling contact position cannot be adjusted according to the length of a pipe to be subjected to arc rolling, arc rolling treatment cannot be carried out on a short pipe and the practicability is low in the background technology. A mounting mechanism is arranged at the top of the bottom plate and comprises a first supporting plate connected to the outer wall of the top of the bottom plate through bolts, a top plate connected to the outer wall of the top of the first supporting plate through bolts and a fixing plate connected to the outer wall of the top of the bottom plate through bolts, and a positioning assembly is arranged on the outer wall of the top of the bottom plate. The positioning assembly comprises a supporting seat and a mounting rod which are connected to the outer wall of the top of the bottom plate through bolts. According to the arc rolling device, the extrusion position can be adjusted according to the length of the tubular workpiece to be subjected to arc rolling, the tubular workpieces with different lengths can be subjected to arc rolling treatment, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control arc rolling machines, in particular to a positioning mechanism of a numerical control arc rolling machine. Background Art

[0002] As a commonly used machine tool, CNC arc rolling machine is mainly used to roll or bend various tubular or rod-shaped materials.

[0003] After searching, a Chinese patent (application number "201220701304.7") discloses "a positioning mechanism of a CNC arc rolling machine". The above-mentioned positioning mechanism includes a power source, a transmission mechanism connected to the power source for transmitting power, a ball screw-type pushing mechanism connected to the transmission mechanism, and an execution end connected to the pushing mechanism. The lateral thrust generated by the power source is converted into an arc motion force through a first rotating shaft provided on the base plate. However, during use, when adjusting the above-mentioned positioning mechanism, the arc rolling contact position cannot be adjusted according to the length of the pipe to be rolled, and shorter pipes cannot be rolled, and the practicality is low. Utility Model Content

[0004] The utility model provides a positioning mechanism for a CNC arc rolling machine, which solves the problem proposed in the comparative document that the positioning mechanism cannot adjust the arc rolling contact position according to the length of the pipe to be arc rolled during adjustment, cannot perform arc rolling on pipes of shorter lengths, and has low practicality.

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

[0006] A positioning mechanism of a CNC arc rolling machine includes a base plate, a mounting mechanism is provided on the top of the base plate, the mounting mechanism includes a first support plate connected to the top outer wall of the base plate by bolts, a top plate connected to the top outer wall of the first support plate by bolts, and a fixing plate connected to the top outer wall of the base plate by bolts, a positioning assembly is provided on the top outer wall of the base plate, the positioning assembly includes a support seat connected to the top outer wall of the base plate by bolts, a mounting rod connected to the top outer wall of the support seat by a bearing, a positioning roller fixed on the outer wall of the mounting rod, and a pad connected to the top outer wall of the support seat by bolts, an extrusion assembly is provided on the top outer wall of the base plate, the extrusion assembly includes an adjusting motor connected to the outer wall of one side of the support seat by bolts, a screw connected to the outer wall of one end of the output shaft of the adjusting motor by a coupling, and a screw connected to the screw The cam is connected to the top of the adjusting base by a plurality of bolts, and the plurality of bolts are connected to the cam by a plurality of bolts.

[0007] Preferably, the second support plate is connected to the top outer wall of the bottom plate by bolts, and the bottom of the top plate is connected to the bottom outer wall of the second support plate by bolts.

[0008] Preferably, the top end of the mounting rod is connected to the bottom outer wall of the top plate through a bearing, and the lower part of the mounting rod passes through and is connected to the bottom outer wall of the pad through a bearing, and one side of the pad is connected to the outer wall of one side of the first support plate through bolts.

[0009] Preferably, an installation groove is provided on the outer wall of one side of the support seat, and one end of the adjusting motor output shaft passes through and is connected to the inner wall of one side of the installation groove through a bearing, one end of the screw rod passes through and is connected to the outer wall of one side of the first support plate through a bearing, and the two sliders are slidably installed on the outer walls of the two slide rails respectively, a first channel is provided on the top outer wall of the top plate, and the upper part of the fixing rod is slidably sleeved in the first channel, a second channel is provided on the top outer wall of the pad, and the lower part of the fixing rod is slidably sleeved in the second channel, two limit blocks are fixed on the bottom outer wall of the connecting plate, two slideways are provided on the top outer wall of the top plate, and the two limit blocks are slidably installed in the two slideways respectively.

[0010] Through the above scheme, the tubular workpiece to be rolled is supported by the pad, and one side of the tubular workpiece is brought into contact with the positioning roller. Then, the motor output shaft is adjusted to drive the screw to rotate, and the screw drives the connecting block to move. At the same time, the two sliders move along the two slide rails, thereby causing the extrusion roller to extrude the tubular workpiece.

[0011] Preferably, one side of the fixing seat is connected to the outer wall of one side of the second support plate by bolts, and the top of the fixing seat is connected to the bottom outer wall of the top plate by bolts.

[0012] Preferably, a mounting shaft is connected to the inner wall of the mounting frame through a bearing, and the pressing roller is fixed on the outer wall of the mounting shaft, four limit rods are fixed on the outer wall of one side of the mounting frame, and a limit plate is fixed on the outer wall of one end of the four limit rods, the four limit rods respectively pass through and are slidably installed on the outer wall of one side of the adjusting block, sliding grooves are provided on the outer walls on both sides of one side of the second support plate, and the pressing cylinder is slidably sleeved in the sliding grooves, two limit grooves are provided on the outer walls on both sides of one side of the second support plate, and the four limit rods are slidably sleeved in the two limit grooves in pairs.

[0013] Through the above scheme, the adjustment block is driven to move by adjusting the movement of the cylinder piston rod, and then the pressing cylinder, the mounting frame and the pressing roller are driven to move, so as to adjust the extrusion position of the workpiece. Subsequently, the movement of the pressing cylinder piston rod drives the mounting frame and the pressing roller to move and extrude the workpiece, thereby realizing the arc rolling processing of the workpiece.

[0014] The beneficial effects of the utility model are:

[0015] The movement of the piston rod of the adjusting cylinder drives the movement of the adjusting block, and then drives the movement of the pressing cylinder, the mounting frame and the pressing roller, so as to adjust the extrusion position of the workpiece. Subsequently, the movement of the piston rod of the pressing cylinder drives the movement of the mounting frame and the pressing roller and extrude the workpiece, so as to realize the arc rolling processing of the workpiece. The extrusion position can be adjusted according to the length of the tubular workpiece to be rolled, so as to realize arc rolling processing of tubular workpieces of different lengths, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall main structure of the positioning mechanism of a CNC arc rolling machine proposed in the utility model.

[0017] Figure 2 This is a schematic diagram of the main structure of the installation mechanism of the positioning mechanism of a CNC arc rolling machine proposed in the utility model.

[0018] Figure 3 This is a schematic diagram of the main cross-sectional structure of a positioning component of a positioning mechanism of a CNC arc rolling machine proposed in the present invention.

[0019] Figure 4This is a schematic diagram of the main structure of the extrusion component of the positioning mechanism of a CNC arc rolling machine proposed by the present invention.

[0020] Figure 5 This is a schematic diagram of the main structure of the adjustment component of the positioning mechanism of a CNC arc rolling machine proposed by the present invention.

[0021] Figure 6 This is a schematic diagram of the main structure of the material pressing component of the positioning mechanism of a CNC arc rolling machine proposed by the utility model.

[0022] In the figure: 1. Base plate; 2. Mounting mechanism; 201. First support plate; 202. Second support plate; 203. Top plate; 204. Fixed plate; 3. Positioning assembly; 301. Support seat; 302. Mounting rod; 303. Positioning roller; 304. Pad; 4. Extrusion assembly; 401. Adjusting motor; 402. Screw; 403. Connecting block; 404. Slider; 405. Slide rail; 406. Fixed rod; 407. Extrusion roller; 408. Connecting plate; 409. Limiting block; 5. Adjusting assembly; 501. Fixed seat; 502. Adjusting cylinder; 503. Adjusting block; 6. Pressing assembly; 601. Pressing cylinder; 602. Mounting frame; 603. Mounting shaft; 604. Pressing roller; 605. Limiting rod; 606. Limiting plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Example 1, reference Figure 1-4A positioning mechanism of a CNC arc rolling machine includes a base plate 1, a mounting mechanism 2 is provided on the top of the base plate 1, the mounting mechanism 2 includes a first support plate 201 connected to the top outer wall of the base plate 1 by bolts, a top plate 203 connected to the top outer wall of the first support plate 201 by bolts, and a fixing plate 204 connected to the top outer wall of the base plate 1 by bolts, a second support plate 202 is connected to the top outer wall of the base plate 1 by bolts, the bottom of the top plate 203 is connected to the bottom outer wall of the second support plate 202 by bolts, a positioning component 3 is provided on the top outer wall of the base plate 1, and the positioning component 3 includes a support plate 201 connected to the top outer wall of the base plate 1 by bolts. The support seat 301, the mounting rod 302 connected to the top outer wall of the support seat 301 through a bearing, the positioning roller 303 fixed to the outer wall of the mounting rod 302 and the pad 304 connected to the top outer wall of the support seat 301 through bolts, the top of the mounting rod 302 is connected to the bottom outer wall of the top plate 203 through a bearing, the lower part of the mounting rod 302 passes through and is connected to the bottom outer wall of the pad 304 through a bearing, one side of the pad 304 is connected to the outer wall of one side of the first support plate 201 through bolts, and an extrusion component 4 is provided on the top outer wall of the bottom plate 1, and the extrusion component 4 includes an adjustment motor 40 connected to the outer wall of one side of the support seat 301 through bolts. 1. A screw 402 connected to the outer wall of one end of the output shaft of the adjusting motor 401 through a coupling, a connecting block 403 screwed on the outer wall of the screw 402, two sliders 404 respectively connected to the outer wall of the bottom of the connecting block 403 by bolts, two slide rails 405 respectively connected to the outer wall of the top of the bottom plate 1 by bolts, a fixing rod 406 connected to the outer wall of the top of the connecting block 403 through a bearing, an extrusion roller 407 fixed on the outer wall of the fixing rod 406 and a connecting plate 408 connected to the outer wall of the upper part of the fixing rod 406 through a bearing. A mounting groove is opened on the outer wall of one side of the support base 301. One end of the output shaft of the adjusting motor 401 is provided. It passes through and is connected to the inner wall of one side of the mounting groove through a bearing, one end of the screw rod 402 passes through and is connected to the outer wall of one side of the first support plate 201 through a bearing, and the two sliders 404 are slidably installed on the outer walls of the two slide rails 405 respectively. A first channel is opened on the top outer wall of the top plate 203, and the upper part of the fixing rod 406 is slidably sleeved in the first channel. A second channel is opened on the top outer wall of the pad 304, and the lower part of the fixing rod 406 is slidably sleeved in the second channel. Two limit blocks 409 are fixed on the bottom outer wall of the connecting plate 408, and two slides are opened on the top outer wall of the top plate 203. The two limit blocks 409 are slidably installed in the two slides respectively.

[0025] Example 2, reference Figure 5-6, a positioning mechanism of a CNC arc rolling machine also includes two adjusting components 5, the adjusting component 5 includes a fixing seat 501 connected to the top outer wall of the bottom plate 1 by bolts, an adjusting cylinder 502 connected to the outer wall of one side of the fixing seat 501 by bolts, and an adjusting block 503 connected to the outer wall of one end of the piston rod of the adjusting cylinder 502 by bolts, one side of the fixing seat 501 is connected to the outer wall of one side of the second support plate 202 by bolts, the top of the fixing seat 501 is connected to the bottom outer wall of the top plate 203 by bolts, and two pressing components 6 are provided on one side of the fixing plate 204, the pressing component 6 includes a pressing cylinder 601 connected to the outer wall of one side of the adjusting block 503 by bolts, and a pressing cylinder 503 connected to the outer wall of the adjusting block 503 by bolts. The mounting frame 602 and the pressing roller 604 are on the outer wall of one end of the 601 piston rod, and the inner wall of the mounting frame 602 is connected to the mounting shaft 603 through a bearing. The pressing roller 604 is fixed to the outer wall of the mounting shaft 603. Four limiting rods 605 are fixed on the outer wall of one side of the mounting frame 602. A limiting plate 606 is fixed on the outer wall of one end of the four limiting rods 605. The four limiting rods 605 are respectively passed through and slidably installed on the outer wall of one side of the adjusting block 503. Slide grooves are provided on the outer walls on both sides of one side of the second support plate 202. The pressing cylinder 601 is slidably sleeved in the slide grooves. Two limiting grooves are provided on the outer walls on both sides of one side of the second support plate 202. The four limiting rods 605 are respectively slidably sleeved in the two limiting grooves in pairs.

[0026] Working principle: The pad 304 supports the tubular workpiece to be rolled, and makes one side of the tubular workpiece contact with the positioning roller 303. Then, the output shaft of the motor 401 is adjusted to drive the screw 402 to rotate, and the screw 402 drives the connecting block 403 to move. At the same time, the two sliders 404 move along the two slide rails 405, so that the extrusion roller 407 and the tubular workpiece are squeezed. The piston rod of the adjusting cylinder 502 moves to drive the adjusting block 503 to move, and then drives the pressing cylinder 601, the mounting frame 602 and the pressing roller 604 to move, so as to adjust the extrusion position of the workpiece. Then, the piston rod of the pressing cylinder 601 moves to drive the mounting frame 602 and the pressing roller 604 to move and extrude the workpiece, so as to realize the arc rolling processing of the workpiece.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning mechanism for a CNC arc rolling machine, comprising a base plate (1), characterized in that: A mounting mechanism (2) is provided on the top of the bottom plate (1), and the mounting mechanism (2) comprises a first support plate (201) connected to the top outer wall of the bottom plate (1) by bolts, a top plate (203) connected to the top outer wall of the first support plate (201) by bolts, and a fixing plate (204) connected to the top outer wall of the bottom plate (1) by bolts; A positioning assembly (3) is provided on the top outer wall of the bottom plate (1), and the positioning assembly (3) comprises a support seat (301) connected to the top outer wall of the bottom plate (1) via bolts, a mounting rod (302) connected to the top outer wall of the support seat (301) via a bearing, a positioning roller (303) fixed to the outer wall of the mounting rod (302), and a backing plate (304) connected to the top outer wall of the support seat (301) via bolts; An extrusion assembly (4) is provided on the top outer wall of the base plate (1), and the extrusion assembly (4) comprises an adjustment motor (401) connected to the outer wall of one side of the support seat (301) by bolts, a screw rod (402) connected to the outer wall of one end of the output shaft of the adjustment motor (401) by a coupling, a connection block (403) screwed on the outer wall of the screw rod (402), two sliders (404) respectively connected to the bottom outer wall of the connection block (403) by bolts, two slide rails (405) respectively connected to the top outer wall of the base plate (1) by bolts, a fixing rod (406) connected to the top outer wall of the connection block (403) by a bearing, an extrusion roller (407) fixed to the outer wall of the fixing rod (406), and a connection plate (408) connected to the upper outer wall of the fixing rod (406) by a bearing. Two adjustment assemblies (5) are provided on the top outer wall of the base plate (1), and the adjustment assemblies (5) include a fixing seat (501) connected to the top outer wall of the base plate (1) by bolts, an adjustment cylinder (502) connected to the outer wall of one side of the fixing seat (501) by bolts, and an adjustment block (503) connected to the outer wall of one end of the piston rod of the adjustment cylinder (502) by bolts; Two pressing assemblies (6) are provided on one side of the fixed plate (204), and the pressing assembly (6) includes a pressing cylinder (601) connected to the outer wall of one side of the adjustment block (503) by bolts, a mounting frame (602) connected to the outer wall of one end of the piston rod of the pressing cylinder (601) by bolts, and a pressing roller (604).

2. The positioning mechanism of a CNC arc rolling machine according to claim 1, characterized in that: The top outer wall of the bottom plate (1) is connected to a second support plate (202) via bolts, and the bottom of the top plate (203) is connected to the bottom outer wall of the second support plate (202) via bolts.

3. The positioning mechanism of a CNC arc rolling machine according to claim 1, characterized in that: The top end of the mounting rod (302) is connected to the bottom outer wall of the top plate (203) via a bearing, and the lower portion of the mounting rod (302) passes through and is connected to the bottom outer wall of the pad (304) via a bearing. One side of the pad (304) is connected to the outer wall of one side of the first support plate (201) via a bolt.

4. The positioning mechanism of a CNC arc rolling machine according to claim 1, characterized in that: The support seat (301) is provided with a mounting groove on one side outer wall, and one end of the output shaft of the regulating motor (401) passes through and is connected to the inner wall of one side of the mounting groove through a bearing, one end of the screw rod (402) passes through and is connected to the outer wall of one side of the first support plate (201) through a bearing, the two sliders (404) are respectively slidably mounted on the outer walls of the two slide rails (405), the top outer wall of the top plate (203) is provided with a first channel, and the upper part of the fixing rod (406) is slidably sleeved in the first channel, the top outer wall of the pad (304) is provided with a second channel, and the lower part of the fixing rod (406) is slidably sleeved in the second channel, two limit blocks (409) are fixed on the bottom outer wall of the connecting plate (408), two slideways are provided on the top outer wall of the top plate (203), and the two limit blocks (409) are respectively slidably mounted in the two slideways.

5. The positioning mechanism of a CNC arc rolling machine according to claim 2, characterized in that: One side of the fixing seat (501) is connected to the outer wall of one side of the second support plate (202) by bolts, and the top of the fixing seat (501) is connected to the bottom outer wall of the top plate (203) by bolts.

6. The positioning mechanism of a CNC arc rolling machine according to claim 2, characterized in that: The inner wall of the mounting frame (602) is connected to a mounting shaft (603) through a bearing, and the pressing roller (604) is fixed on the outer wall of the mounting shaft (603). Four limiting rods (605) are fixed on the outer wall of one side of the mounting frame (602), and a limiting plate (606) is fixed on the outer wall of one end of the four limiting rods (605). The four limiting rods (605) respectively penetrate and are slidably installed on the outer wall of one side of the adjustment block (503). Slide grooves are provided on the outer walls on both sides of one side of the second support plate (202), and the pressing cylinder (601) is slidably sleeved in the slide grooves. Two limiting grooves are provided on the outer walls on both sides of one side of the second support plate (202), and the four limiting rods (605) are slidably sleeved in the two limiting grooves in pairs.

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