A concentricity detection method and device for anchor processing

Abstract

The present invention discloses a concentricity detection device for anchor processing, wherein a standard test rod is inserted into an anchor hole, a dial indicator is abutted against the surface of the anchor rod, the dial indicator is connected through a fixing frame, a connecting frame, and a connecting protection assembly, a trigger assembly is arranged on one side of the dial indicator, the trigger assembly is used to trigger the connecting protection assembly, and a rotating mechanism is connected to an anchor head on the anchor rod to drive the anchor rod to rotate. A detection method is used for using a detection device. When the eccentricity of a workpiece to be measured exceeds the detection range of the dial indicator, the workpiece to be measured will directly squeeze the dial indicator body to cause damage to the dial indicator, by arranging a trigger assembly on one side of the dial indicator, when squeezing the dial indicator, the trigger assembly is squeezed at the same time, when squeezing to the limit, the trigger assembly is triggered, so that the connecting protection assembly changes from a fixed fixing frame and a connecting frame to a movable connection, and under the pressure of the workpiece, the dial indicator drives the connecting frame to rotate around the fixing frame, so that the distance between the dial indicator and the workpiece is increased, thereby avoiding damage to the dial indicator.

Description

Technical Field

[0001] The invention relates to the technical field of anchor detection, and in particular to a concentricity detection method and a device for anchor processing. Background Art

[0002] Anchors refer to permanent anchoring devices used in prestressed concrete. They are anchoring tools used in post-tensioned structures or components to maintain the tension of prestressed tendons and transfer it to the interior of concrete. They are also called prestressed anchors. They are widely used in bridges, high-rise buildings, rock slope anchoring, foundation reinforcement, tunnel mine roof anchoring, prestressed grids, etc.

[0003] Chinese patent announcement number CN220339291U discloses a concentricity detection device, including a workbench, a support plate is fixedly connected to the left side of the top of the workbench, a second hollow plate is fixedly connected to the top of the support plate, an elongated groove is provided on the front and rear sides of the interior of the second hollow plate, a second slider is slidably connected to the interior of the elongated groove, a rack is fixedly connected to the top of the second slider, and a gear is meshedly connected between the two adjacent racks. In the utility model, the workbench gear, the second fixed plate, the rack, the elongated groove, the rotating rod, etc. are used in combination, so that it is convenient to rotate during detection, avoiding the situation that causes inaccurate detection, and at the same time improving the utilization rate of the equipment, and the moving block, the hollow box, the spring, the elongated block, etc. are used in combination, so that shaking is avoided during the inspection process, the detection object can be fixed and operated, and it is convenient for the staff to use.

[0004] The above patent detects the concentricity by using a dial indicator, but since the dial indicator is fixedly set, when the eccentricity of the workpiece to be measured exceeds the detection range of the dial indicator, the workpiece to be measured will directly squeeze the dial indicator body and cause damage to the dial indicator. Summary of the invention

[0005] The invention provides a concentricity detection method and a device for anchor processing, which are used to solve the problems raised in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A concentricity detection device for anchor processing, comprising a standard test rod and a dial indicator, wherein the standard test rod is inserted into the anchor hole of the anchor rod, the detection end of the dial indicator abuts against the surface of the anchor rod, the standard test rod is rotatably connected to the detection fixing plate, the dial indicator is connected to the detection fixing plate through a fixing frame, a connecting frame, and a connecting protection component, a trigger component is provided on one side of the dial indicator, the trigger component is used to trigger the connecting protection component, a rotating mechanism is provided on the detection fixing plate, the rotating mechanism is connected to the anchor head on the anchor rod, the rotating mechanism is used to drive the anchor rod to rotate, and the rotation axis of the rotating mechanism coincides with the central axis of the standard test rod.

[0008] Preferably, the connection protection component is connected to one end of the fixing frame away from the detection fixing plate, the connecting frame is connected to the connection protection component, a dial indicator is fixedly connected to the connecting frame, and the trigger component is fixedly connected to the connecting frame.

[0009] Preferably, the trigger assembly comprises a fixed base, the fixed base is fixedly connected to the connecting frame, a stabilizing slider is slidably connected to the fixed base, and a triggering slider is slidably connected to the stabilizing slider;

[0010] A trigger pressure block is fixedly connected to the stabilizing slider, a first elastic member is arranged between the trigger pressure block and the trigger slider, two ends of the first elastic member are respectively fixedly connected to the trigger pressure block and the first elastic member, a limit rotating plate is arranged above the trigger pressure block and the first elastic member, and the limit rotating plate is used to engage the trigger slider.

[0011] Preferably, the limit rotating plate is rotatably connected to the rotating support rod, the rotating support rod is fixedly connected to the fixed support rod, the fixed support rod is fixedly connected to the fixed base, and a torsion spring is arranged between the limit rotating plate and the rotating support rod, and the torsion spring is used to maintain the limit rotating plate with a downward rotation tendency.

[0012] Preferably, a first clamping piece is provided on the lower surface of the limit rotating plate, and a second clamping piece is provided on the upper surface of the trigger sliding block, and the first clamping piece is clamped with the second clamping piece when the trigger pressing block is not in contact with the limit rotating plate;

[0013] The end of the limit rotating plate away from the rotating support rod is provided with an inclined surface, and the end of the trigger pressing block away from the fixed base is provided with an inclined surface corresponding to the inclined surface on the movable support rod;

[0014] A trigger contact rod is fixedly connected to the trigger pressing block, and the end of the trigger contact rod is flush with the detection end of the dial indicator.

[0015] Preferably, the connection protection assembly comprises a limit connector and a connection shell, the limit connector is plugged into the connection shell, a connection frame is fixedly connected to the outer surface of the connection shell, one end of the limit connector is fixedly connected to the fixing frame, one end of the limit connector and the other end are fixedly connected to a trigger head, and a trigger plug hole is provided on the trigger head;

[0016] The limit connecting piece is provided with a slide groove, a locking rod is slidably connected in the slide groove, the locking rod includes a locking protrusion and a sliding hole, a rotating flap is inserted in the sliding hole, and the rotating flap rotates in a groove provided on the limit connecting piece, the locking protrusion is slidably connected in the limit groove provided on the inner surface of the connecting shell, a shifting block is provided on the inner edge of the rotating flap, and a plurality of shifting blocks on the rotating flap are located in a cavity in the limit connecting piece, and the cavity in the limit connecting piece corresponds to the trigger plug-in hole;

[0017] The rotating petals are symmetrically arranged, and a second elastic member is arranged between two opposite sets of rotating petals;

[0018] The positioning rods are symmetrically arranged, a third elastic member is arranged between the symmetrical positioning rods, and the third elastic member passes through the limiting connecting member.

[0019] Preferably, a release plug is slidably inserted in the trigger plug hole, a linkage hole is provided on the release plug, a second linkage inclined surface is provided in the linkage hole, the second linkage inclined surface abuts against the first linkage inclined surface at one end of the linkage rod, and the other end of the linkage rod is fixedly connected to the trigger slider;

[0020] The release plug is provided with a return groove, and the outer end of the return groove is provided with an outwardly expanded wedge surface. When the release plug is inserted into the cavity in the limiting connector, the side wall of the return groove abuts against the side wall of the shifting block.

[0021] A concentricity detection method for anchor processing is used to use the concentricity detection device for anchor processing.

[0022] Preferably, the method comprises the following steps:

[0023] S1: Insert the standard test rod into the anchor hole in the anchor rod;

[0024] S2: Place the detection end of the dial indicator against the surface of the anchor rod;

[0025] S3: Rotate the anchor head to make the anchor rod rotate one circle relative to the dial indicator;

[0026] S4: Record the test data of the dial indicator and obtain the concentricity index of the anchor through the test data.

[0027] Preferably, in step S4, the maximum value point and the detection value of the dial indicator per unit degree of rotation on the anchor rod are screened from the detection data of the dial indicator, and the first fluctuation coefficient of the anchor rod is obtained by the detection value of the dial indicator per unit degree of rotation on the anchor rod. The second fluctuation coefficient of the anchor rod is obtained by screening the maximum value point from the detection data of the dial indicator, and the concentricity index of the anchor is obtained according to the first fluctuation coefficient, the second fluctuation coefficient and the distance between the inner wall of the anchor hole in the anchor rod and the outer wall of the anchor rod.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] When the eccentricity of the workpiece to be measured exceeds the detection range of the dial indicator, the workpiece to be measured will directly squeeze the dial indicator body and cause damage to the dial indicator. The present application sets a trigger component on one side of the dial indicator. When the workpiece to be measured squeezes the dial indicator, it also squeezes the trigger component. When the dial indicator is squeezed to the limit, the trigger component is triggered, so that the connection protection component changes from a fixed fixing frame and a connecting frame to a movable connection. Under the pressure of the workpiece, the dial indicator drives the connecting frame to rotate around the fixing frame, so that the distance between the dial indicator and the workpiece is increased, thereby avoiding damage to the dial indicator. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0031] Figure 2 A schematic diagram of a state structure of a trigger component of the present invention;

[0032] Figure 3 A schematic diagram of a state structure of a trigger component of the present invention;

[0033] Figure 4 It is a schematic diagram of the connection structure between the trigger component and the connection protection component of the present invention;

[0034] Figure 5 It is a schematic diagram of the structure of the connection protection component of the present invention;

[0035] Figure 6 It is a schematic cross-sectional view of the structure of the connection protection assembly of the present invention;

[0036] Figure 7 It is a schematic diagram of the return groove structure of the present invention.

[0037] In the figure: 1, anchor head; 2, anchor rod; 3, standard test rod; 4, detection fixing plate; 5, fixing frame; 6, dial indicator; 7, connecting frame; 8, trigger assembly; 9, connection protection assembly; 10, linkage rod; 11, first linkage inclined plane; 12, release plug; 13, second linkage inclined plane; 14, linkage hole; 15, return groove; 16, wedge surface; 801, fixed base; 802, stable slider; 803, trigger slider; 804, fixed support rod; 805, rotating support rod; 806 , limit rotating plate; 807, trigger pressure block; 808, trigger contact rod; 809, first elastic member; 810, first locking member; 811, second locking member; 901, trigger head; 902, trigger plug hole; 903, limit connecting member; 904, rotating flap; 905, second elastic member; 906, locking rod; 907, connecting shell; 908, shifting block; 909, recovery groove; 910, sliding groove; 911, third elastic member; 9061, locking protrusion; 9062, sliding hole. DETAILED DESCRIPTION

[0038] In the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish the protective components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] Example 1

[0040] See also Figure 1 An embodiment of the present invention provides: a concentricity detection device for anchor processing, comprising a standard test rod 3 and a dial indicator 6, wherein the standard test rod 3 is inserted into the anchor hole of the anchor rod 2, the detection end of the dial indicator 6 abuts against the surface of the anchor rod 2, the standard test rod 3 is rotatably connected to the detection fixing plate 4, the dial indicator 6 is connected to the detection fixing plate 4 through a fixing frame 5, a connecting frame 7, and a connecting protection component 9, a trigger component 8 is provided on one side of the dial indicator 6, and the trigger component 8 is used to trigger the connecting protection component 9, a rotating mechanism is provided on the detection fixing plate 4, the rotating mechanism is connected to the anchor head 1 on the anchor rod 2, the rotating mechanism is used to drive the anchor rod 2 to rotate, and the rotation axis of the rotating mechanism coincides with the central axis of the standard test rod 3.

[0041] The connection protection component 9 is connected to one end of the fixing frame 5 away from the detection fixing plate 4, the connecting frame 7 is connected to the connection protection component 9, the connecting frame 7 is fixedly connected with a dial indicator 6, and the trigger component 8 is fixedly connected to the connecting frame 7.

[0042] The working principle and beneficial effects of the above scheme:

[0043] When the eccentricity of the workpiece to be measured exceeds the detection range of the dial indicator, the workpiece to be measured will directly squeeze the dial indicator body and cause damage to the dial indicator. The present application sets a trigger component 8 on one side of the dial indicator 6. When the workpiece to be measured squeezes the dial indicator 6, it also squeezes the trigger component 8. When the dial indicator 6 is squeezed to the limit, the trigger component 8 is triggered, so that the connection protection component 9 changes from a fixed fixing frame 5 and a connecting frame 7 to a movable connection. Under the pressure of the workpiece, the dial indicator 6 drives the connecting frame 7 to rotate around the fixing frame 5, so that the distance between the dial indicator 6 and the workpiece is increased, thereby avoiding damage to the dial indicator 6.

[0044] Example 2

[0045] See also Figure 2-3 On the basis of Example 1, the trigger assembly 8 includes a fixed base 801, the fixed base 801 is fixedly connected to the connecting frame 7, a stabilizing slider 802 is slidably connected to the fixed base 801, and a trigger slider 803 is slidably connected to the stabilizing slider 802;

[0046] A trigger pressure block 807 is fixedly connected to the stabilizing slider 802, a first elastic member 809 is arranged between the trigger pressure block 807 and the trigger slider 803, two ends of the first elastic member 809 are respectively fixedly connected to the trigger pressure block 807 and the first elastic member 809, a limit rotating plate 806 is arranged above the trigger pressure block 807 and the first elastic member 809, and the limit rotating plate 806 is used for clamping the trigger slider 803.

[0047] The limit rotating plate 806 is rotatably connected to the rotating support rod 805, the rotating support rod 805 is fixedly connected to the fixed support rod 804, the fixed support rod 804 is fixedly connected to the fixed base 801, and a torsion spring is arranged between the limit rotating plate 806 and the rotating support rod 805, and the torsion spring is used to maintain the limit rotating plate 806 with a downward rotation tendency.

[0048] The lower surface of the limit rotating plate 806 is provided with a first clamping member 810, and the upper surface of the triggering slider 803 is provided with a second clamping member 811. When the triggering pressing block 807 is not in contact with the limit rotating plate 806, the first clamping member 810 is clamped with the second clamping member 811;

[0049] The end of the limit rotating plate 806 away from the rotating support rod 805 is provided with an inclined surface, and the end of the trigger pressing block 807 away from the fixed base 801 is provided with an inclined surface corresponding to the inclined surface on the movable support rod 805;

[0050] A trigger contact rod 808 is fixedly connected to the trigger pressing block 807 , and the end of the trigger contact rod 808 is flush with the detection end of the dial indicator 6 .

[0051] The working principle and beneficial effects of the above scheme:

[0052] When the eccentricity of the workpiece to be measured exceeds the detection range of the dial indicator, the workpiece to be measured squeezes the detection end of the dial indicator to the limit position, and also squeezes the trigger contact rod 808 to move. The movement of the trigger contact rod 808 drives the trigger pressure block 807 to move, squeezing the first elastic member 809. The first elastic member 809 accumulates force and causes the trigger pressure block 807 to gradually move to the limit rotating plate 806 to abut. When the limit rotating plate 806 abuts against the trigger pressure block 807, the trigger pressure block 807 squeezes the limit rotating plate 806 to rotate around the second elastic member 905, and the slide groove 910 on the limit rotating plate 806 is disengaged from the second locking member 811 on the trigger slider 803, and the trigger slider 803 loses its restriction. The trigger slider 803 pops out quickly under the action of the elastic force of the first elastic member 809, triggering the connection protection component 9, so that the connection protection component 9 disconnects the fixation between the fixing frame 5 and the connecting frame 7, so that the fixing frame 5 can rotate relative to the connecting frame 7, that is, the dial indicator 6 can be separated from the anchor rod 2, thereby avoiding damage to the dial indicator 6.

[0053] Example 3

[0054] See also Figure 4-7 On the basis of Embodiment 1-2, the connection protection component 9 includes a limit connector 903 and a connection shell 907, the limit connector 903 is plugged into the connection shell 907, the outer surface of the connection shell 907 is fixedly connected with a connection frame 7, one end of the limit connector 903 is fixedly connected to the fixing frame 5, the other end of the limit connector 903 is fixedly connected with a trigger head 901, and the trigger head 901 is provided with a trigger plug hole 902;

[0055] The position-limiting connecting member 903 is provided with a slide groove 910, and a locking rod 906 is slidably connected in the slide groove 910. The locking rod 906 includes a locking protrusion 9061 and a sliding hole 9062. A rotating flap 904 is inserted in the sliding hole 9062, and the rotating flap 904 rotates in a groove provided on the position-limiting connecting member 903. The locking protrusion 9061 is slidably connected in the position-limiting groove provided on the inner surface of the connecting shell 907. A shifting block 908 is provided on the inner edge of the rotating flap 904. The shifting blocks 908 on the rotating flap 904 are located in the cavity in the position-limiting connecting member 903, and the cavity in the position-limiting connecting member 903 corresponds to the trigger plug hole 902.

[0056] The rotating petals 904 are symmetrically arranged, and a second elastic member 905 is arranged between two opposite sets of rotating petals 904;

[0057] The locking rods 906 are symmetrically arranged, and a third elastic member 911 is arranged between the symmetrical locking rods 906 . The third elastic member 911 passes through the limiting connector 903 .

[0058] A release plug 12 is slidably inserted in the trigger plug hole 902, and a linkage hole 14 is provided on the release plug 12. A second linkage inclined surface 13 is provided in the linkage hole 14, and the second linkage inclined surface 13 abuts against the first linkage inclined surface 11 at one end of the linkage rod 10, and the other end of the linkage rod 10 is fixedly connected to the trigger slider 803;

[0059] The release plug 12 is provided with a return groove 15 , and the outer end of the return groove 15 is provided with an outwardly expanded wedge surface 16 . When the release plug 12 is inserted into the cavity in the limiting connector 903 , the side wall of the return groove 15 abuts against the side wall of the shifting block 908 .

[0060] The working principle and beneficial effects of the above scheme:

[0061] When the trigger assembly 8 is triggered, the trigger slider 803 pops out, driving the linkage rod 10 to move, so that the linkage rod 10 is inserted into the second linkage inclined surface 13 of the release plug 12, and the first linkage inclined surface 11 abuts the linkage hole 14 to move the release plug 12, and the release plug 12 is inserted into the cavity of the limiting connector 903. The shifting blocks 908 on the rotating petal 904 are affected by the return groove 15 and the wedge surface 16, and the adjacent shifting blocks 908 drive the rotating petals 904 to overcome the elastic force of the second elastic member 905 and move closer to each other. The recovery groove 909 on the rotating flap 904 is rotated to the position of the locking protrusion 9061, releasing the restriction of the rotating flap 904 on the locking protrusion 9061. Under the action of the force of the workpiece on the dial indicator 6, the locking rod 906 overcomes the elastic force of the third elastic member 911 and retracts into the slide groove 910, so that the connection protection component 9 disconnects the fixation between the fixed frame 5 and the connecting frame 7, so that the fixed frame 5 can rotate relative to the connecting frame 7, that is, the dial indicator 6 can be separated from the anchor rod 2, thereby avoiding damage to the dial indicator 6.

[0062] Example 4

[0063] A concentricity detection method for anchor processing is used to use the concentricity detection device for anchor processing.

[0064] The following steps are involved:

[0065] S1: Insert the standard test rod 3 into the anchor hole in the anchor rod 2;

[0066] S2: Place the detection end of the dial gauge 6 against the surface of the anchor rod 2;

[0067] S3: Rotate the anchor head 1 to make the anchor rod 2 rotate one circle relative to the dial indicator 6;

[0068] S4: Record the test data of dial gauge 6, and obtain the concentricity index of the anchor through the test data.

[0069] In step S4, the maximum value point and the detection value A of each unit degree of rotation of the dial gauge 6 on the anchor rod 2 are selected from the detection data of the dial gauge 6. i , the detection value A of each unit degree of rotation of the dial gauge 6 on the anchor rod 2 i The first fluctuation coefficient M1 of the anchor rod is obtained, and the maximum value point (maximum value A max , minimum value A min ) obtain the second fluctuation coefficient M2 of the anchor rod, and obtain the concentricity index S of the anchor according to the first fluctuation coefficient M1, the second fluctuation coefficient M2 and the distance between the inner wall of the anchor hole in the anchor rod 2 and the outer wall of the anchor rod 2;

[0070]

[0071] Wherein, n is the number of times the dial indicator 6 rotates on the anchor rod 2 by a unit degree;

[0072] The working principle and beneficial effects of the above scheme:

[0073] By integrating the anchor test data of dial gauge 6, it is concluded that the concentricity index S of the anchor represents the concentricity degree of the anchor. Compared with the traditional concentricity test method, it has better consistency and can fully represent the concentricity of the anchor.

[0074] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A concentricity detection device for anchor processing, characterized in that: The invention comprises a standard test rod (3) and a dial indicator (6), wherein the standard test rod (3) is inserted into the anchor hole of the anchor rod (2), the detection end of the dial indicator (6) abuts against the surface of the anchor rod (2), the standard test rod (3) is rotatably connected to the detection fixing plate (4), the dial indicator (6) is connected to the detection fixing plate (4) through a fixing frame (5), a connecting frame (7), and a connection protection component (9), a trigger component (8) is provided on one side of the dial indicator (6), and the trigger component (8) is used to trigger the connection protection component (9), and a rotating mechanism is provided on the detection fixing plate (4), the rotating mechanism is connected to the anchor head (1) on the anchor rod (2), the rotating mechanism is used to drive the anchor rod (2) to rotate, and the rotation axis of the rotating mechanism coincides with the central axis of the standard test rod (3); The connection protection component (9) is connected to an end of the fixing frame (5) away from the detection fixing plate (4), the connecting frame (7) is connected to the connection protection component (9), a dial indicator (6) is fixedly connected to the connecting frame (7), and the trigger component (8) is fixedly connected to the connecting frame (7); The trigger assembly (8) comprises a fixed base (801), the fixed base (801) is fixedly connected to the connecting frame (7), a stabilizing slider (802) is slidably connected to the fixed base (801), and a triggering slider (803) is slidably connected to the stabilizing slider (802); A trigger pressing block (807) is fixedly connected to the stabilizing slider (802), a first elastic member (809) is arranged between the trigger pressing block (807) and the triggering slider (803), two ends of the first elastic member (809) are respectively fixedly connected to the trigger pressing block (807) and the first elastic member (809), a limit rotating plate (806) is arranged above the trigger pressing block (807) and the first elastic member (809), and the limit rotating plate (806) is used to engage the triggering slider (803); The connection protection component (9) comprises a limit connection piece (903) and a connection shell (907), wherein the limit connection piece (903) is inserted into the connection shell (907), a connection frame (7) is fixedly connected to the outer surface of the connection shell (907), one end of the limit connection piece (903) is fixedly connected to the fixing frame (5), one end of the limit connection piece (903) and the other end thereof are fixedly connected to a trigger head (901), and a trigger plug hole (902) is provided on the trigger head (901); The limiting connection piece (903) is provided with a slide groove (910), and a locking rod (906) is slidably connected in the slide groove (910). The locking rod (906) includes a locking protrusion (9061) and a sliding hole (9062). A rotating flap (904) is inserted in the sliding hole (9062), and the rotating flap (904) rotates in a groove provided on the limiting connection piece (903). The locking protrusion (9061) is slidably connected in a limiting groove provided on the inner surface of the connecting shell (907). A shifting block (908) is provided on the inner edge of the rotating flap (904). A plurality of the shifting blocks (908) on the rotating flap (904) are located in a cavity in the limiting connection piece (903), and the cavity in the limiting connection piece (903) corresponds to the trigger plug hole (902); The rotating petals (904) are symmetrically arranged, and a second elastic member (905) is arranged between two opposite sets of rotating petals (904); The locking rods (906) are symmetrically arranged, and a third elastic member (911) is arranged between the symmetrical locking rods (906), and the third elastic member (911) passes through the limiting connecting member (903).

2. A concentricity detection device for anchor processing according to claim 1, characterized in that: The limit rotating plate (806) is rotatably connected to the rotating support rod (805), the rotating support rod (805) is fixedly connected to the fixed support rod (804), and the fixed support rod (804) is fixedly connected to the fixed base (801). A torsion spring is provided between the limit rotating plate (806) and the rotating support rod (805), and the torsion spring is used to maintain the limit rotating plate (806) with a tendency to rotate downward.

3. A concentricity detection device for anchor processing according to claim 1, characterized in that: A first locking member (810) is disposed on the lower surface of the limit rotating plate (806), and a second locking member (811) is disposed on the upper surface of the trigger sliding block (803); when the trigger pressing block (807) is not in contact with the limit rotating plate (806), the first locking member (810) and the second locking member (811) are engaged with each other; An end of the limit rotating plate (806) away from the rotating support rod (805) is provided with an inclined surface, and an end of the trigger pressing block (807) away from the fixed base (801) is provided with an inclined surface corresponding to the inclined surface on the movable support rod (805); A trigger contact rod (808) is fixedly connected to the trigger pressing block (807), and the end of the trigger contact rod (808) is flush with the detection end of the dial indicator (6).

4. The concentricity detection device for anchor processing according to claim 1, characterized in that: A release plug (12) is slidably inserted into the trigger plug hole (902), a linkage hole (14) is provided on the release plug (12), a second linkage inclined surface (13) is provided in the linkage hole (14), the second linkage inclined surface (13) abuts against a first linkage inclined surface (11) at one end of a linkage rod (10), and the other end of the linkage rod (10) is fixedly connected to the trigger slider (803); The release plug (12) is provided with a return groove (15), and the outer end of the return groove (15) is provided with an outwardly expanded wedge-shaped surface (16). When the release plug (12) is inserted into the cavity in the limiting connecting piece (903), the side wall of the return groove (15) abuts against the side wall of the shifting block (908).

5. A concentricity detection method for anchor processing, characterized in that: A concentricity detection device for anchor processing using the method described in any one of claims 1 to 4.

6. A concentricity detection method for anchor processing according to claim 5, characterized in that: include Follow these steps: S1: inserting the standard test rod (3) into the anchor hole in the anchor rod (2); S2: placing the detection end of the dial indicator (6) against the surface of the anchor rod (2); S3: Rotate the anchor head (1) to make the anchor rod (2) rotate one circle relative to the dial indicator (6); S4: Record the test data of the dial gauge (6) and obtain the concentricity index of the anchor through the test data.

7. A concentricity detection method for anchor processing according to claim 6, characterized in that: In step S4, the maximum value point and the detection value of the dial indicator (6) on the anchor rod (2) for each unit degree of rotation are selected from the detection data of the dial indicator (6), and the first fluctuation coefficient of the anchor rod is obtained through the detection value of the dial indicator (6) on the anchor rod (2) for each unit degree of rotation. The second fluctuation coefficient of the anchor rod is obtained by selecting the maximum value point from the detection data of the dial indicator (6), and the concentricity index of the anchor is obtained based on the first fluctuation coefficient, the second fluctuation coefficient and the distance between the inner wall of the anchor hole in the anchor rod (2) and the outer wall of the anchor rod (2).

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