Torsion-resistant clamping device for flange machining

Abstract

The invention relates to the field of flange machining, in particular to an anti-torsion clamping device for flange machining. Comprising a drilling machine table, an axis column located in the drilling machine table, a driving plate located at the top of the axis column, a driving groove formed in the surface of the driving plate, a clamping plate located at the top of a sliding base, a limiting table located in the hollow position of the lower portion of the drilling machine table and a locking rod penetrating through the axis column. According to the flange clamping device, the clamping action of opposite movement of the clamping plates on the two sides can be achieved through rotation of the driving plate, the clamping precision of the clamping plates is improved under the arrangement of the oval driving groove, and the clamping posture can be adaptively adjusted according to the flange size in the clamping process under the arrangement of accessories of the abutting part, the ejection part and the auxiliary part; according to the flange clamping device, the clamping area of a flange is increased, multi-point clamping is achieved, the clamping capacity of the device is improved, and the possibility that the flange deflects and moves due to too large torsion or other acting force in the machining process is reduced.

Description

Technical Field

[0001] The invention relates to the field of flange processing, in particular to an anti-torsion clamping device for flange processing. Background Art

[0002] The flange is a part that connects shafts to each other and is used to connect pipe ends or two devices. When drilling a flange, the flange is generally fixed by setting a clamping device on a drilling machine. However, when clamping the flange with the existing clamping device, due to the different sizes of the flanges, it is difficult for the clamping plate and the flange to fit completely, which results in the clamping contact area between the clamping plate and the flange not being effectively guaranteed, resulting in poor clamping stability of the flange by the clamping device. The flange is easily affected by the force applied by the drill bit during the drilling process and moves or deflects, resulting in reduced processing efficiency and easily leading to waste. Therefore, an anti-torsion clamping device for flange processing is proposed. Summary of the invention

[0003] In view of the problem that the clamping device in the above or prior art has poor clamping stability and the flange is prone to deflection or movement during drilling, the present invention is proposed.

[0004] Therefore, an object of the present invention is to provide an anti-torsion clamping device for flange machining.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising, an operating mechanism, including a drilling machine, a shaft column located inside the drilling machine, a driving plate located at the top of the shaft column, a driving groove reserved on the surface of the driving plate, a slide seat located inside the driving groove, a clamping plate located at the top of the slide seat, a limit table located in the hollow part of the lower part of the drilling machine, and a locking rod passing through the shaft column; and,

[0006] The auxiliary mechanism comprises an abutment member penetrating the middle section of the clamping plate, one end of the abutment member is provided with a return-blocking member, both sides of the abutment member are connected with ejection members, the outer sides of the two groups of ejection members are provided with auxiliary members, and the outer sides of the auxiliary members are also provided with positioning members;

[0007] The invention also comprises magnets arranged on both sides of the surface of the drilling machine table.

[0008] As a preferred solution of the anti-torsion clamping device for flange machining of the present invention, two guide grooves are symmetrically arranged on the surface of the drilling machine table.

[0009] As a preferred solution of the anti-torsion clamping device for flange processing of the present invention, wherein: the slide seats are symmetrically arranged with respect to the driving plate, and the tops of the two slide seats are both penetrated through the guide groove and connected with a clamping plate;

[0010] The sliding seat and the driving groove are in sliding cooperation, and the driving groove is arranged in an elliptical ring shape.

[0011] As a preferred solution of the anti-torsion clamping device for flange processing of the present invention, wherein: the locking rod and the shaft column are threadedly matched, and the end of the locking rod abuts against the inner edge of the limit platform;

[0012] The inner edge of the limiting platform is arranged in a spiral surface.

[0013] As a preferred solution of the anti-torsion clamping device for flange processing of the present invention, wherein: auxiliary mechanisms are installed inside the two clamping plates;

[0014] The abutment member includes a buttress, a connection block is provided on the bottom surface of the buttress, a return rod is provided in the inner cavity of the buttress, a bayonet is symmetrically provided on one end of the return rod connected to the buttress, and a compression spring is also provided in the inner cavity of the buttress;

[0015] The two sides of the stop are arranged in an inclined manner, and the arc surface of the stop is consistent with the arc surface of the clamping plate.

[0016] As a preferred solution of the anti-torsion clamping device for flange processing of the present invention, a connecting groove matching with the connecting block is provided on the inner wall of the clamping plate.

[0017] As a preferred solution of the anti-torsion clamping device for flange processing of the present invention, the return-blocking member comprises a locking sleeve arranged on the outside of the base, a resisting spring is fixedly arranged on the inner side of the locking sleeve, a movable seat is fixedly connected to the other end of the resisting spring, a positioning seat is symmetrically arranged on one end surface of the movable seat, and a card bead is movably embedded in the inner side of the two positioning seats;

[0018] The inner side wall of the locking sleeve is inclined, and the locking sleeve matches the inner cavity of the stop seat;

[0019] The clamping bead and the clamping port are clamped together, and both the clamping bead and the movable seat are made of magnetic metal materials.

[0020] As a preferred solution of the anti-torsion clamping device for flange processing of the present invention, wherein: the ejector comprises a contact plate abutting against the side surface of the abutment seat, the end of the contact plate is fixedly connected to an arc plate, a clamping rail is arranged on the outer side of the arc plate, the clamping rail is fixed to the inner wall of the clamping plate, the other end of the arc plate is fixedly connected to a reset spring, the reset spring is arranged between the arc plate and the inner wall of the clamping plate, a plurality of elastic plates are arranged on the arc plate in sequence, and a scraper is also arranged on the arc plate;

[0021] The elastic plate is deformable, and a plurality of the elastic plates are inclined.

[0022] As a preferred solution of the anti-torsion clamping device for flange processing of the present invention, wherein: the auxiliary parts are provided in multiple groups along the inner edge of the clamping plate;

[0023] The auxiliary component includes an ejector pin that penetrates the clamping plate, a sleeve spring is arranged on the outer side of the ejector pin, and a positioning hole is also reserved on the outer wall of the ejector pin;

[0024] The ejector pins and the elastic plate are arranged correspondingly.

[0025] As a preferred solution of the anti-torsion clamping device for flange machining of the present invention, wherein: a positioning piece is provided on the outer side of each of the auxiliary pieces;

[0026] The positioning member comprises an end plate fixed to the inner wall of the clamping plate, and an arch plate is integrally connected to the end of the end plate;

[0027] The arched plate is engaged with the positioning openings, and the positioning openings are arranged in a linear array on the ejector pins;

[0028] The arched plate is on the moving path of the scraper.

[0029] The beneficial effects of the anti-torsion clamping device for flange processing of the present invention are as follows: through the rotation of the driving plate, the clamping action of the clamping plates on both sides moving toward each other can be realized, and under the setting of the elliptical driving groove, the clamping accuracy of the clamping plates is improved, and under the accessory setting of the abutment, ejection and auxiliary parts, the clamping posture can be adaptively adjusted according to the flange size during the clamping process to increase the clamped area of ​​the flange, realize multi-point clamping, improve the clamping capacity of the device, reduce the possibility of deflection and movement of the flange due to excessive torque or other forces during the drilling process, ensure the stability of the flange during the drilling process, and at the same time improve the accuracy of the drill bit when drilling the flange, and at the same time, with the cooperation of the return piece, the positioning piece and the magnet, the locking and unlocking of the clamping posture of the auxiliary structure can be realized, thereby making the use of the device more convenient when performing batch drilling processing of flanges of the same size or different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0031] Figure 1 Schematic diagram of the overall structure of the anti-torsion clamping device for flange processing.

[0032] Figure 2 Longitudinal section through a torque-resistant clamping device machined for a flange.

[0033] Figure 3 Schematic diagram of the drive plate of the anti-torsion clamping device for flange processing.

[0034] Figure 4 Schematic diagram of the structure of the limit table of the anti-torsion clamping device for flange processing.

[0035] Figure 5 Partial cross-section of the anti-twist clamp machined for the flange.

[0036] Figure 6 Schematic diagram of the internal structure of the clamping plate of the anti-torsion clamping device for flange processing.

[0037] Figure 7 Schematic diagram of the exploded structure of the positioning parts and auxiliary parts of the anti-torsion clamping device for flange processing.

[0038] In the figure: 100, operating mechanism; 101, drilling machine; 101a, guide groove; 102, axis column; 103, driving plate; 104, driving groove; 105, slide seat; 106, clamping plate; 106a, connecting groove; 107, limit table; 108, locking rod; 200, auxiliary mechanism; 201, abutment; 201a, abutment; 201b, connecting block; 201c, return rod; 201d, bayonet; 201e, compression spring; 202, return member; 202a , locking sleeve; 202b, resisting spring; 202c, movable seat; 202d, positioning seat; 202e, card bead; 203, ejector; 203a, contact plate; 203b, arc plate; 203c, clamping rail; 203d, return spring; 203e, elastic plate; 203f, scraper; 204, auxiliary part; 204a, ejector pin; 204b, sleeve spring; 204c, positioning port; 205, positioning member; 205a, end plate; 205b, arch plate; 206, magnet. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0040] Example 1, reference Figure 1 to Figure 4 , which is the first embodiment of the present invention, provides an anti-torsion clamping device for flange processing, which can achieve the effect of clamping flanges of different sizes, and includes an operating mechanism 100.

[0041] Specifically, the operating mechanism 100 includes a drilling machine 101 with cavities in the upper and lower parts thereof, and two guide grooves 101a are symmetrically arranged on the surface of the drilling machine 101. A rotatable shaft column 102 is also passed through the inner center of the drilling machine 101, and a driving plate 103 is coaxially fixedly connected to the top of the shaft column 102. A driving groove 104 is also left on the driving plate 103. At the same time, slide seats 105 are movably embedded on both ends of the inner part of the driving groove 104, and a clamping plate 106 is fixedly installed on the top of each slide seat 105. A limit platform 107 is also fixedly installed on the inner wall of the cavity at the lower part of the drilling machine 101, and a locking rod 108 is also passed through the lower end of the shaft column 102.

[0042] Furthermore, the upper and lower ends of the two slides 105 are respectively located in the driving groove 104 and the guide groove 101a, that is, the two slides 105 can slide inside the driving groove 104, and at the same time, the driving groove 104 is set in an elliptical ring shape, and the guide groove 101a is set in a straight line, so that when the driving plate 103 rotates, the slides 105 at both ends are restricted by the guide groove 101a and cannot rotate, and with the change of the relative position between the driving groove 104 and it, the slides 105 at both ends can be pushed by the driving groove 104 to move toward each other, so that the clamping plate 106 completes the clamping action.

[0043] Preferably, the locking rod 108 is externally threaded, that is, the locking rod 108 and the shaft column 102 are threadedly matched, so that by rotating the locking rod 108, the relative extension amount between the end of the locking rod 108 and the shaft column 102 can be controlled.

[0044] The inner edge of the limit platform 107 is set in a spiral surface, that is, the distances between any two points on the inner edge of the limit platform 107 and the center of the limit platform 107 are different. Therefore, when the end of the locking rod 108 abuts against the inner edge of the limit platform 107, the locking rod 108 can be used to limit the rotation of the axis column 102, thereby ensuring the accuracy of the clamping position of the splint 106 and preventing the splint 106 from loosening.

[0045] When in use, first rotate the axis column 102 through the locking rod 108, so as to control the rotation of the drive plate 103, and with the cooperation of the drive groove 104 and the slide seat 105, the two clamping plates 106 can move toward each other synchronously to perform a clamping action. After the flange is clamped, the user can rotate the locking rod 108 to make the locking rod 108 further extend and abut against the inner wall of the limit platform 107. With the help of the vortex surface of the inner wall of the limit platform 107, the rotation of the axis column 102 and the drive plate 103 is restricted, thereby ensuring stable clamping of the flange.

[0046] In summary, through the elliptical setting of the driving groove 104, the distance between the two clamps 106 can be adjusted when it rotates, and the distance between the clamps 106 can be adjusted steplessly, so that the adjustment of the clamping distance between the clamps 106 is more precise, and after the adjustment is completed, the inner vortex surface of the limit platform 107 and the locking rod 108 can be used for precise limiting, thereby improving the adaptability of the clamping device and meeting the different processing and use requirements of users.

[0047] Example 2, reference Figure 1 to Figure 6 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides an auxiliary structure of the anti-torsion clamping device for flange processing, which can achieve multi-point clamping of flanges of different sizes to improve the anti-torsion ability of the clamping device, and includes an auxiliary mechanism 200.

[0048] Specifically, auxiliary mechanisms 200 are installed inside the two clamps 106, which include an abutment 201 that passes through the middle section of the clamp 106, and a return member 202 is provided at one end of the abutment 201. The return member 202 is installed on the other side of the clamp 106 relative to the abutment 201, and ejection members 203 are connected to both sides of the abutment 201. Auxiliary members 204 are provided on the outer sides of the two groups of ejection members 203, and multiple groups of auxiliary members 204 are arranged along the inner extension direction of the clamp 106. The auxiliary mechanism 200 also includes magnets 206 arranged on both sides of the surface of the drilling machine 101, and the magnets 206 are located at the end of the return member 202 away from the abutment 201.

[0049] Furthermore, the abutment 201 includes a abutment 201a that passes through the middle section of the splint 106, and the bottom surface of the abutment 201a is integrally connected with a connecting block 201b, and a connecting groove 106a that cooperates with the connecting block 201b is provided on the inner wall of the splint 106, and the connecting block 201b is movably embedded in the connecting groove 106a, so that through the cooperation between the connecting block 201b and the connecting groove 106a, the trajectory of the abutment 201a can be restricted and the abutment 201a can be prevented from separating from the splint 106, and a return rod 201c is integrally provided in the internal cavity of the abutment 201a, and a bayonet 201d is symmetrically provided on the end of the return rod 201c connected to the abutment 201a, and a compression spring 201e is also provided in the internal cavity of the abutment 201a.

[0050] The return member 202 includes a locking sleeve 202a arranged on the outside of the base, the locking sleeve 202a is fixed on the outer wall of the splint 106 away from the resisting seat 201a, and a resisting spring 202b is fixedly arranged on the inner side of the locking sleeve 202a, and the other end of the resisting spring 202b is fixedly connected to a movable seat 202c, and a positioning seat 202d is symmetrically arranged on the end surface of the movable seat 202c facing the resisting seat 201a, and the inner sides of the two positioning seats 202d are movably embedded with a card bead 202e, and the positioning seat 202d can limit the card bead 202e to a certain extent to prevent the card bead 202e from falling from the center of the movable seat 202c.

[0051] The ejector 203 includes a contact plate 203a that abuts against the side of the buttress 201a, and the end of the contact plate 203a is fixedly connected to an arc plate 203b. A clamping rail 203c is arranged on the outer side of the arc plate 203b, and the clamping rail 203c is fixed to the inner wall of the clamping plate 106. The clamping rail 203c can guide and limit the movement of the arc plate 203b to ensure that the activity trajectory of the arc plate 203b is always consistent. At the same time, the other end of the arc plate 203b is also fixedly connected to a return spring 203d, and the return spring 203d is arranged between the arc plate 203b and the inner wall of the clamping plate 106, which can elastically support the arc plate 203b, so that after the squeezing force of the buttress 201a on the contact plate 203a disappears, the arc plate 203b can be quickly reset, and a plurality of elastic plates 203e are also arranged in sequence on the arc plate 203b.

[0052] The auxiliary component 204 includes an ejector pin 204a penetrating through the clamping plate 106. A sleeve spring 204b is disposed on the outer side of the ejector pin 204a. The sleeve spring 204b can support the ejector pin 204a so that the ejected ejector pin 204a can be automatically reset.

[0053] Preferably, the arc surface of the butt 201a is consistent with the arc surface of the clamping plate 106, so that when the butt 201a in the clamping state is moved into position inside the clamping plate 106 by the extrusion force, its arc surface can be connected with the arc surface of the clamping plate 106 to ensure the integrity of the inner side of the clamping plate 106 and avoid affecting the clamping of the flange. At the same time, the two sides of the butt 201a are inclined, so that when the butt 201a moves into the clamping plate 106, it can push the contact plate 203a abutting against its outside to move outward, thereby achieving the purpose of moving the arc plate 203b along the clamping rail 203c to achieve the subsequent coordination between the ejector 203 and the auxiliary component 204.

[0054] Furthermore, the elastic plate 203e is deformable, and the multiple elastic plates 203e are inclined, and the outer sides of the multiple elastic plates 203e are abutted with ejector pins 204a, so that when the butt 201a moves inward to squeeze the contact plate 203a and the guide arc plate 203b to move outward, the relative position between the elastic plate 203e and the ejector pin 204a can be changed. With the help of the inclined setting of the elastic plate 203e, the ejector pin 204a can be pushed out to contact the flange to be clamped, thereby realizing multi-point clamping of the flange, and when the ejector pin 204a is extended to contact the flange, the ejector pin 204a stops moving. At this time, as the elastic plate 203e continues to move, the force of the elastic plate 203e is transferred to the elastic plate 203e itself with the help of its own deformable setting, so as to meet the need for continued movement of the elastic plate 203e.

[0055] The locking sleeve 202a cooperates with the internal cavity of the butt seat 201a, so that when the butt seat 201a moves backward, the locking sleeve 202a and the butt seat 201a move relative to each other, and the locking sleeve 202a can be fully inserted into the butt seat 201a and squeeze the compression spring 201e. Correspondingly, the return rod 201c inside the butt seat 201a is fully inserted into the locking sleeve 202a.

[0056] A section of the inner wall of the locking sleeve 202a near the end is inclined, and the movable seat 202c and the card bead 202e are initially located at the end of the locking sleeve 202a under the push of the spring 202b. At this time, the two card beads 202e are affected by the inner inclined surface of the locking sleeve 202a, and the distance between them is small, which is smaller than the maximum diameter of the return rod 201c. Therefore, when the return rod 201c is inserted, the card bead 202e and the movable seat 202c can be squeezed to move to the other end. As the card beads 202e move, the space between the two card beads 202e increases, and the return rod 201c can pass through the space between the two and continue to move. At the same time, the squeezing force on the spring 202b disappears. When the anti-return rod 201c is fully inserted, the card bead 202e enters the slot 201d at the end of the anti-return rod 201c under the joint action of the anti-spring 202b and the inner inclined section of the locking sleeve 202a, and completes the engagement with the slot 201d, thereby limiting the anti-return rod 201c, so that it is in a locked state after the anti-return seat 201a is fully inserted, so as to ensure that the position of the ejector 203 remains unchanged, so that it can be stably matched with the auxiliary component 204.

[0057] The bead 202e and the movable seat 202c are both made of magnetic metal materials, that is, there is an attractive force between the bead 202e, the movable seat 202c and the magnet 206, so that when the distance between the two clamps 106 is at the maximum position, the return member 202 on the two clamps 106 is close to the magnets 206 on both sides, and at this time, the magnet 206 can generate magnetic force on the movable seat 202c and the bead 202e, so that the movable seat 202c and the bead 202e move in their directions, thereby releasing the restriction of the bead 202e on the return rod 201c, and at this time, the stop seat 201a can be quickly reset under the elastic force of the compression spring 201e for subsequent use, and while the stop seat 201a is reset, the ejector 203 and the auxiliary member 204 can be reset in linkage cooperation with the stop seat 201a.

[0058] When in use, the flange is placed on the surface of the drilling machine table 101, and then the axis column 102 is rotated to make the driving plate 103 and the driving groove 104 rotate synchronously, so that the two side clamps 106 move toward the flange through the slide seat 105. As the clamps 106 move, the retaining seat 201a first contacts the flange and retracts under the relative force of the flange, thereby pushing the ejector 203 to make the ejector pins 204a on both sides extend out, so that the ejector pins 204a contact the flange, and then as the retaining seat 201a is fully retracted, the ejector pins 204a automatically adjust their own extended state to ensure that they cooperate with the clamping plate 106 to complete the clamping of the flange. After the retaining seat 201a is fully retracted, it is limited by the return member 202 to ensure that the ejector 203 continues to support the auxiliary member 204. At this time, the clamping device is in a clamping state, and the clamping of the flange is complete. After completion, the position of the clamping plate 106 is locked by the return rod 201c, and then the processing operation can be carried out. At the same time, when the flange of the same size is continuously processed, the user can control the clamping plate 106 to fine-tune outward, and the retaining seat 201a is still kept inward, and the device is in a clamping state. At this time, the position of the retaining seat 201a and each ejector pin 204a is still in a state adapted to the size, thereby improving the processing efficiency of the flange of the same size, and there is no need to adjust the position of the ejector pin 204a during each clamping process. At the same time, when the clamping size needs to be changed, the clamping plate 106 can be readjusted to the initial maximum clamping distance. At this time, the cooperation between the magnet 206 and the return member 202 can make the abutment member 201, the ejection member 203 and the auxiliary member 204 reset, that is, the device is in an unclamped state, so as to facilitate the subsequent readjustment of the clamping posture.

[0059] In summary, through the coordinated arrangement of the abutment 201, the ejection member 203 and the auxiliary member 204, the clamping posture can be adaptively adjusted according to the flange size during the clamping process to increase the clamped area of ​​the flange, thereby improving the clamping stability of the flange and eliminating the influence of torque during the flange processing to ensure processing efficiency. At the same time, with the coordination between the return member 202, the abutment 201 and the magnet 206, the use posture of the auxiliary member 204 can be controlled by adjusting the clamping distance of the clamping plate 106, so that the use of the clamping device is more convenient.

[0060] Example 3, reference Figure 1 to Figure 7 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a positioning member 205 of the anti-torsion clamping device processed by a flange, which solves the problem that it is difficult to lock the position of the ejector pin 204a after it is extended.

[0061] Specifically, the outer sides of the plurality of auxiliary components 204 are all provided with positioning components 205 , and the positioning components 205 include an end plate 205 a fixed to the inner wall of the clamping plate 106 , and an arch plate 205 b is integrally connected to the end of the end plate 205 a .

[0062] Furthermore, a positioning hole 204c is provided on the outer wall of the ejector pin 204a, and the positioning holes 204c are arranged in a linear array on the ejector pin 204a, and the positioning holes 204c can be snap-fitted with the arch plate 205b, thereby positioning the ejector pin 204a through the snap fit between the arch plate 205b and the positioning holes 204c at different positions, thereby preventing the ejector pin 204a from moving again after being extended and affecting the clamping of the flange.

[0063] A scraper 203f is also provided on the curved plate 203b, and the scraper 203f moves synchronously with the curved plate 203b, and the arched plate 205b is on the moving path of the scraper 203f. Before the curved plate 203b is squeezed into place, the arched plate 205b is located below the scraper 203f, and is squeezed by the scraper 203f to avoid the arched plate 205b from contacting the ejector pin 204a and affecting the free adjustment of the ejector pin 204a. When the curved plate 203b is squeezed into place, the arched plate 205b is staggered with the scraper 203f, and is engaged with the positioning port 204c at the corresponding position on the ejector pin 204a, so as to realize the positioning of the ejector pin 204a and ensure the stable use of the ejector pin 204a.

[0064] When in use, during the clamping process, the scraper 203f can flatten the arched plate 205b so that the position of the ejector pin 204a can be freely adjusted. After the butt seat 201a and the arc plate 203b are moved into place, the clamping is completed. At this time, the scraper 203f is staggered with the arched plate 205b, and the arched plate 205b is arched and engaged with the positioning port 204c to realize the positioning of the ejector pin 204a, thereby ensuring the stability of the clamping process.

[0065] In summary, by disposing the positioning member 205, the ejector pin 204a in the clamping state can be positioned without affecting the adjustment of the ejector pin 204a, thereby ensuring stable clamping.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An anti-torsion clamping device for flange processing, characterized in that: include, The operating mechanism (100) comprises a drilling machine platform (101), a shaft column (102) located inside the drilling machine platform (101), a driving plate (103) located on the top of the shaft column (102), a driving groove (104) provided on the surface of the driving plate (103), a slide seat (105) located inside the driving groove (104), a clamping plate (106) located on the top of the slide seat (105), a limit platform (107) located in the hollow portion of the lower part of the drilling machine platform (101), and a locking rod (108) passing through the shaft column (102); and, The auxiliary mechanism (200) comprises an abutment member (201) penetrating the middle section of the clamping plate (106), one end of the abutment member (201) is provided with a return block (202), both sides of the abutment member (201) are connected with ejection members (203), the outer sides of the two groups of ejection members (203) are provided with auxiliary members (204), and the outer sides of the auxiliary members (204) are also provided with positioning members (205); It also includes magnets (206) arranged on both sides of the surface of the drilling machine platform (101).

2. The anti-torsion clamping device for flange machining according to claim 1, characterized in that: Two guide grooves (101a) are symmetrically arranged on the surface of the drilling machine platform (101).

3. The anti-torsion clamping device for flange machining according to claim 2, characterized in that: The slide seats (105) are symmetrically arranged with respect to the driving plate (103), and the tops of the two slide seats (105) both penetrate the guide groove (101a) and are connected to a clamping plate (106); The sliding seat (105) and the driving groove (104) are in sliding cooperation, and the driving groove (104) is arranged in an elliptical ring shape.

4. The anti-torsion clamping device for flange machining according to claim 3, characterized in that: The locking rod (108) and the shaft column (102) are threadedly matched, and the end of the locking rod (108) abuts against the inner edge of the limiting platform (107); The inner edge of the limiting platform (107) is arranged in a spiral shape.

5. The anti-torsion clamping device for flange machining according to claim 4, characterized in that: Auxiliary mechanisms (200) are installed inside the two clamping plates (106); The abutment member (201) comprises a buttress (201a), a connection block (201b) is arranged on the bottom surface of the buttress (201a), a return rod (201c) is arranged in the inner cavity of the buttress (201a), a bayonet (201d) is symmetrically arranged on one end of the return rod (201c) connected to the buttress (201a), and a compression spring (201e) is also arranged in the inner cavity of the buttress (201a); The two sides of the stopper (201a) are arranged in an inclined manner, and the arc surface of the stopper (201a) has the same curvature as the arc surface of the clamping plate (106).

6. The anti-torsion clamping device for flange machining according to claim 5, characterized in that: A connecting groove (106a) matching with the connecting block (201b) is provided on the inner wall of the clamping plate (106).

7. The anti-torsion clamping device for flange machining according to claim 6, characterized in that: The return-blocking member (202) comprises a locking sleeve (202a) arranged on the outside of the base, a resisting spring (202b) is fixedly arranged on the inner side of the locking sleeve (202a), the other end of the resisting spring (202b) is fixedly connected to a movable seat (202c), a positioning seat (202d) is symmetrically arranged on one end surface of the movable seat (202c), and a clamping bead (202e) is movably embedded on the inner side of the two positioning seats (202d); The inner side wall of the locking sleeve (202a) is arranged to be inclined, and the locking sleeve (202a) matches the inner cavity of the stop seat (201a); The clamping bead (202e) and the clamping port (201d) are clamped together, and the clamping bead (202e) and the movable seat (202c) are both made of magnetic metal material.

8. The anti-torsion clamping device for flange machining according to claim 7, characterized in that: The ejector (203) comprises a contact plate (203a) abutting against the side of the buttress (201a); the end of the contact plate (203a) is fixedly connected to an arc plate (203b); a clamping rail (203c) is arranged on the outer side of the arc plate (203b); the clamping rail (203c) is fixed to the inner wall of the clamping plate (106); the other end of the arc plate (203b) is fixedly connected to a return spring (203d); the return spring (203d) is arranged between the arc plate (203b) and the inner wall of the clamping plate (106); a plurality of elastic plates (203e) are arranged in sequence on the arc plate (203b); and a scraper (203f) is also arranged on the arc plate (203b); The elastic plate (203e) is deformably arranged, and a plurality of the elastic plates (203e) are arranged in an inclined manner.

9. The anti-torsion clamping device for flange machining according to claim 8, characterized in that: The auxiliary parts (204) are arranged in multiple groups along the inner edge of the clamping plate (106); The auxiliary component (204) comprises a pin (204a) penetrating the clamping plate (106), a sleeve spring (204b) is arranged on the outer side of the pin (204a), and a positioning opening (204c) is also reserved on the outer wall of the pin (204a); The ejector pin (204a) and the elastic plate (203e) are arranged correspondingly.

10. The anti-torsion clamping device for flange machining according to claim 9, characterized in that: A positioning piece (205) is provided on the outer side of each auxiliary piece (204); The positioning member (205) comprises an end plate (205a) fixed to the inner wall of the clamping plate (106), and an arch plate (205b) is integrally connected to the end of the end plate (205a); The arched plate (205b) is engaged with the positioning opening (204c), and the positioning opening (204c) is arranged in a linear array on the ejector pin (204a); The arched plate (205b) is on the moving path of the scraper (203f).

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