Device for measuring parallelism of two end faces of rock

Abstract

The invention relates to the field of parallelism measurement, in particular to a device for measuring the parallelism of two end faces of a rock, which comprises a measuring mechanism, a positioning and pushing assembly arranged above the base and used for positioning and pushing the rock, and a stand column arranged above the base, the inner side of the stand column is provided with a measuring assembly used for measuring the end face of the rock, and the side, away from the positioning pushing assembly, of the upper end of the base is provided with a supporting plate. The parallelism of the two end faces in the vertical direction is further obtained by judging whether the measuring points selected in the vertical direction are parallel or not, so that the trouble that a worker needs to measure the distance between the multiple measuring points on the two end faces, then record multiple data and then calculate and compare the difference values one by one is solved, and the working efficiency is improved. Therefore, the efficiency of measuring the two end faces of the rock by workers is improved.

Description

Technical Field

[0001] The invention relates to the field of parallelism measurement, and more specifically to a device for measuring the parallelism of two end surfaces of a rock. Background Art

[0002] In rock mechanics experiments, such as uniaxial compression experiments or triaxial compression experiments, the parallelism of the two end faces of the rock specimen has a direct impact on the experimental results. If the two end faces are not parallel, then when pressure is applied, the force state of the rock specimen will be uneven, which may lead to deviations in the experimental results. Moreover, if the two end faces of the rock specimen are not parallel, then additional friction or torque may be generated during the experiment. These additional forces will interfere with the experimental results and lead to inaccurate experimental data. Therefore, by measuring the parallelism of the two end faces of the rock and correcting them when necessary, this experimental error can be avoided. The existing method of measuring the parallelism of the two end faces is usually evaluated by measuring the distance difference of multiple position points. If the distance difference of each position point is very small, it means that the two end faces are almost parallel to each other in space. However, there are the following problems in the actual parallelism measurement process: First, the existing distance difference evaluation method requires the use of measuring tools to measure the distance from each measuring point to the corresponding end face and record the data, and then calculate the distance difference on the two end faces. This requires the staff to measure the distances of multiple measuring points on the two end faces respectively, and then record multiple data, and then calculate and compare the differences one by one, which greatly affects the staff's measurement efficiency of the two end faces of the rock. Secondly, during the measurement process, it cannot be ensured that factors such as vibration or staff misoperation during the measurement process will affect the measuring tool, thereby causing data deviation. Finally, in order to improve the accuracy of the measurement, it is also necessary to perform multiple measurements of multiple vertical positions of the end face and take the average value as the final result, which makes the measurement steps cumbersome and increases the amount of data calculation.

[0003] In order to solve the above problems, a device for measuring the parallelism of both end surfaces of rock is proposed. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the problems existing in the prior art, the present invention provides a device for measuring the parallelism of both end faces of rock to solve the problem mentioned in the background technology that requires workers to measure the distances of multiple measuring points on the two end faces respectively, record multiple data, and then calculate and compare the differences one by one, which greatly affects the workers' measurement efficiency of the two end faces of rock. Secondly, during the measurement process, it cannot be ensured that factors such as vibration or misoperation of the workers during the measurement process will affect the measuring tool, thereby causing data deviation. Finally, in order to improve the accuracy of the measurement, it is also necessary to perform multiple measurements of multiple vertical positions of the end face and take the average value as the final result, which leads to cumbersome measurement steps and increases the amount of data calculation.

[0005] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for measuring the parallelism of two end faces of rock, comprising a measuring mechanism, which comprises a base, a positioning and pushing assembly arranged above the base for positioning and pushing the rock, and a column arranged above the base, a measuring assembly for measuring the end face of the rock is arranged on the inner side of the column, a support plate is arranged on the side of the upper end of the base away from the positioning and pushing assembly, a marking assembly for recording multiple measuring points and a pushing assembly for pushing the marking assembly are arranged between the support plate and the column, a measuring auxiliary mechanism is arranged on the side of the column away from the positioning and pushing assembly, the measuring auxiliary mechanism comprises a spreading assembly arranged above the base for spreading the column, and a measuring positioning assembly arranged between the column and the support plate for positioning the measuring assembly.

[0006] The present invention is further configured such that the positioning and pushing assembly includes an electric slide rail arranged above the base, and a slide table arranged above the electric slide rail, a cylinder is arranged on the side of the slide table away from the column, and two cylinders are arranged, a positioning frame is installed at the output end of the cylinder, and the positioning frame is arranged above the slide table.

[0007] The present invention is further configured such that the measuring assembly includes a measuring rod arranged on the inner side of the column, a measuring head is arranged on the inner side of the measuring rod at one end close to the positioning frame, a marking pen is arranged on the end of the measuring rod away from the positioning frame, a fixing ring is welded to the upper end of the measuring rod, a synchronization rod is arranged in the middle part of the fixing ring, the size of the synchronization rod is adapted to the size of the fixing ring, and the synchronization rod is movably connected to the fixing ring.

[0008] The present invention is further configured as follows: a first slide groove is provided on the inner side of the column, a first slider is provided on the side of the measuring rod close to the first slide groove, the first slider is slidably connected to the first slide groove, a second slider is welded to the lower end of the column, a second slide groove is provided on the upper end of the base, the second slider is slidably connected to the second slide groove, first springs are fixedly installed on both sides of the second slide groove, and the other end of the first spring is fixedly connected to the second slider.

[0009] The present invention is further configured such that the marking assembly includes a marking plate arranged between the column and the support plate, a dividing strip is arranged in the middle of the marking plate, a ball head rod is fixedly installed on the side of the marking plate away from the column, a support rod is arranged at the upper end of the ball head rod, one end of the support rod passes through the upper end of the support plate and is fixedly connected to the marking plate, and a second spring is sleeved on the outer wall of the support rod.

[0010] The present invention is further configured such that the pushing assembly includes a servo motor arranged above the base, a screw is installed at the output end of the servo motor, a wedge plate is arranged below the support rod, and an end of the ball head rod away from the column is in contact with the surface of the wedge plate.

[0011] The present invention is further configured such that a screw sleeve is fixedly installed on one side of the wedge plate close to the support plate, the screw is threadedly connected to the screw sleeve, a third slider is fixedly installed on one side of the wedge plate close to the column, a third sliding groove is opened on one side of the support plate close to the third slider, and the third slider is slidably connected to the third sliding groove.

[0012] The present invention is further configured such that the expansion assembly includes a fixed rod arranged above the base, both ends of the fixed rod are welded with a first wedge block, the inner lower end of the column is welded with a second wedge block, and the first wedge block corresponds to the second wedge block, the side of the fixed rod away from the positioning frame is fixedly connected to a U-shaped rack frame, the lower end of the screw rod is fixedly installed with a winding drum, the outer side wall of the winding drum is wrapped with a traction rope, and the other end of the traction rope is fixedly connected to the middle part of the U-shaped rack frame.

[0013] The present invention is further configured as follows: the measuring and positioning assembly includes a positioning rack arranged on the outside of the measuring rod, the positioning rack is arranged on one side of a U-shaped rack frame, and the positioning rack is meshed with the U-shaped rack frame, a fourth slider is welded to the lower end of the U-shaped rack frame, a fourth slide groove is provided at the upper end of the base, the fourth slider is slidably connected to the fourth slide groove, a third spring is fixedly installed on one side of the U-shaped rack frame close to the support plate, and the third spring is sleeved on the outside of the traction rope.

[0014] (III) Beneficial effects Compared with the prior art, the present invention provides a device for measuring the parallelism of both end faces of rock, which has the following beneficial effects: the present invention can enable the marking pen to mark the corresponding measuring points on the marking plate, and reach multiple measuring points by moving the measuring rod, and simultaneously form multiple discrete marking points on the marking plate accordingly, and then connect the multiple discrete marking points on the marking plate, and judge by comparison whether the connecting lines formed by the two discrete marking points on both sides of the dividing strip are parallel, and then judge whether the measuring points selected in this vertical direction are parallel, and then obtain the parallelism of the two end faces in this vertical direction, which solves the trouble of requiring staff to measure the distances of multiple measuring points on the two end faces respectively, and then record multiple data, and then calculate and compare the differences one by one, thereby improving the staff's measurement efficiency of the two end faces of rock.

[0015] The electric slide rail and the slide table can be used to move the fixed rock, so as to facilitate the measurement of multiple vertical measurement points on the two end faces of the rock, thereby ensuring the accuracy of the parallelism judgment of the two end faces and solving the problem of complicated measurement steps and large amount of data calculation.

[0016] The column can also be pushed to slide outward along the direction of the second slide slot, so that the fixed rod can propel the two columns apart, making it easier for the slide to drive the fixed rock to move to the right, so that the two end faces of the rock are in contact with the measuring head on the measuring rod, eliminating the trouble of the staff to manually prop the columns apart, thereby improving the efficiency of rock measurement.

[0017] The U-shaped rack frame can also be meshed with the positioning rack to position the measuring rod before marking, so that the marking plate can be pushed after positioning, thereby ensuring the stability of the measuring rod, and then ensuring the accuracy of the marking point marking, and then ensuring the accuracy of the parallelism judgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the left side structure of the device for measuring the parallelism of the two end faces of rock.

[0019] Figure 2 This is a schematic diagram of the right side structure of the device for measuring the parallelism of the two end faces of rock.

[0020] Figure 3 This is a schematic diagram of the main structure of the device for measuring the parallelism of the two end faces of rock.

[0021] Figure 4 This is a schematic diagram of the top view of the structure of the device for measuring the parallelism of the two end surfaces of rock.

[0022] Figure 5 This is a schematic diagram of the structure of the measuring components of the device for measuring the parallelism of the two end faces of rock.

[0023] Figure 6 This is a schematic diagram of the structure of the marking components of the device for measuring the parallelism of the two end faces of rock.

[0024] Figure 7 This is a schematic diagram of the structure of the pushing component and the measuring and positioning component of the rock two end surface parallelism measuring device.

[0025] Figure 8 This is a schematic diagram of the top view of the measuring rod structure of the device for measuring the parallelism of the two end surfaces of rock.

[0026] Fig. 9 This is a schematic diagram of the partially enlarged structure of point A of the device for measuring the parallelism of the two end faces of rock.

[0027] In the figure: 100, measuring mechanism; 101, base; 102, support plate; 103, electric slide rail; 104, slide table; 105, positioning frame; 106, cylinder; 107, measuring rod; 108, measuring head; 109, marking pen; 110, fixing ring; 111, synchronization rod; 112, column; 113, first slide groove; 114, first slide block; 115, second slide block; 116, first spring; 117, second slide groove; 118, marking plate; 119, dividing bar; 120, ball Head rod; 121, support rod; 122, second spring; 123, servo motor; 124, lead screw; 125, wedge plate; 126, lead screw sleeve; 127, third slider; 128, third slide groove; 200, measurement auxiliary mechanism; 201, fixed rod; 202, U-shaped rack; 203, first wedge block; 204, fourth slider; 205, fourth slide groove; 206, second wedge block; 207, winding drum; 208, traction rope; 209, third spring; 210, positioning rack. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] Example 1, please refer to Figures 1 to 4, is the first embodiment of the present invention, which provides a device for measuring the parallelism of two end faces of rock, including a measuring mechanism 100, which includes a base 101, and also includes a positioning and pushing component arranged above the base 101 for positioning and pushing the rock, and a column 112 arranged above the base 101, the inner side of the column 112 is provided with a measuring component for measuring the end face of the rock, a support plate 102 is arranged on the side of the upper end of the base 101 away from the positioning and pushing component, a marking component for recording multiple measuring points and a pushing component for pushing the marking component are arranged between the support plate 102 and the column 112, a measurement auxiliary mechanism 200 is arranged on the side of the column 112 away from the positioning and pushing component, and the measurement auxiliary mechanism 200 includes a spreading component arranged above the base 101 for spreading the column 112, and a measurement positioning component arranged between the column 112 and the support plate 102 for positioning the measurement component.

[0032] In this embodiment, the position of the rock is limited by the positioning and pushing component, so that the two end faces of the rock to be measured correspond to the measuring component, and then the measuring and positioning component is driven to move to the right by the pushing component, and the measuring and positioning component simultaneously drives the spreading component to follow the movement, so that the spreading component spreads the column 112, thereby ensuring that the measuring component can be against the end face of the rock for measurement, and then multiple measuring points are selected at the two end faces of the rock, and then the measuring component is slid along the direction of the column 112 to move the measuring component to the selected measuring point position, and then the pushing component is controlled to drive the marking component to move to the left, at this time the measuring and positioning component moves first, so that the measuring and positioning component limits the position of the measuring component, thereby ensuring the stability of the measuring component, reducing vibration or Factors such as staff misoperation affect the measuring component, thereby causing data deviation. Finally, the marking component contacts the marking pen 109 on the measuring component to mark the measuring point on the marking component, and then connects multiple discrete marking points on the marking component. By comparison, it is determined whether the connecting lines formed by the two discrete marking points are parallel, and then it is determined whether the measuring points selected in this vertical direction are parallel, and then the parallelism of the two end faces in this vertical direction is obtained. The rock is then pushed by the positioning and pushing component, so that the measuring component measures the parallelism in the vertical direction at multiple different positions on the end face, thereby ensuring the accuracy of the measurement, and can quickly measure the parallelism of the two end faces of the rock, eliminating the trouble of multiple rounds of data recording and calculation.

[0033] Specifically, the positioning and pushing assembly includes an electric slide rail 103 arranged above the base 101, and a slide table 104 arranged above the electric slide rail 103. A cylinder 106 is arranged on the side of the slide table 104 away from the column 112, and two cylinders 106 are arranged. A positioning frame 105 is installed at the output end of the cylinder 106, and the positioning frame 105 is arranged above the slide table 104.

[0034] In this embodiment, the cylinder 106 is installed on the slide 104 in a detachable connection. During measurement, the rock is placed on the slide 104, and then the cylinder 106 is turned on. The cylinder 106 drives the positioning frame 105 to move downward, so that the positioning frame 105 presses and limits the rock, thereby ensuring the stability of the rock during the measurement process and reducing the deviation in the measurement process. At the same time, the electric slide rail 103 and the slide 104 cooperate to drive the fixed rock to move, thereby facilitating the measurement of multiple vertical measurement points on the two end faces of the rock, thereby ensuring the accuracy of the parallelism judgment of the two end faces.

[0035] Furthermore, the measuring assembly includes a measuring rod 107 arranged on the inner side of the column 112, a measuring head 108 is arranged on the inner side of the measuring rod 107 close to the positioning frame 105, a marking pen 109 is arranged on the end of the measuring rod 107 away from the positioning frame 105, a fixing ring 110 is welded to the upper end of the measuring rod 107, a synchronization rod 111 is arranged in the middle of the fixing ring 110, the size of the synchronization rod 111 is adapted to the size of the fixing ring 110, and the synchronization rod 111 is movably connected to the fixing ring 110, and the column 11 2 is provided with a first slide groove 113, a first slider 114 is provided on the side of the measuring rod 107 close to the first slide groove 113, the first slider 114 is slidably connected to the first slide groove 113, a second slider 115 is welded to the lower end of the column 112, a second slide groove 117 is provided on the upper end of the base 101, the second slider 115 is slidably connected to the second slide groove 117, first springs 116 are fixedly installed on both sides of the second slide groove 117, and the other end of the first spring 116 is fixedly connected to the second slider 115.

[0036] In this embodiment, the measuring head 108 is installed on the inner side of the measuring rod 107 by a detachable connection, the marking pen 109 is installed on the other end of the measuring rod 107 by a detachable connection, and the first slider 114 is installed on the outer side of the measuring rod 107 by welding. During measurement, the first spring 116 drives the column 112 to move toward the middle through the resilience of the first spring 116, so that the measuring head 108 on the measuring rod 107 can be against the end face of the rock to be measured, thereby ensuring the accuracy of the measurement. At the same time, the synchronization rod 111 and the fixed ring 110 cooperate to ensure that the two measuring rods 107 can be driven to move synchronously during the movement of the synchronization rod 111, thereby ensuring the synchronous measurement of the measuring points on the two end faces, further reducing the measurement error. At the same time, the first slider 114 and the first slide groove 113 cooperate to ensure that the measuring rod 107 can slide up and down on the inner side of the column 112, so that multiple measuring points on the two end faces of the rock can be measured in the vertical direction, thereby ensuring the accuracy of the marking results.

[0037] Among them, the marking component includes a marking plate 118 arranged between the column 112 and the support plate 102, a dividing strip 119 is arranged in the middle of the marking plate 118, a ball head rod 120 is fixedly installed on the side of the marking plate 118 away from the column 112, a support rod 121 is arranged at the upper end of the ball head rod 120, one end of the support rod 121 passes through the upper end of the support plate 102 and is fixedly connected to the marking plate 118, and a second spring 122 is sleeved on the outer wall of the support rod 121.

[0038] In this embodiment, the partition bar 119 is installed in the middle of the marking plate 118 by gluing. After each measuring head 108 reaches a measuring point in the vertical direction, the marking plate 118 is pushed to move to the left, so that the marking pen 109 marks the corresponding measuring point on the marking plate 118. By moving the measuring rod 107 to reach multiple measuring points, a plurality of discrete marking points are formed on the marking plate 118 correspondingly, and then the plurality of discrete marking points on the marking plate 118 are connected. By comparing and judging whether the connecting lines formed by the two discrete marking points on both sides of the partition bar 119 are parallel, it is further judged whether the measuring points selected in this vertical direction are parallel, and then the measuring points are judged whether the measuring points selected in this vertical direction are parallel. The parallelism of the two end faces in this vertical direction can be obtained. This method improves the measurement efficiency of the parallelism of the two end faces of the rock, avoids the need for workers to perform complicated data recording and distance difference calculations, and can ensure the accuracy of the measurement. Through the cooperation of the ball head rod 120 on the marking plate 118, the marking plate 118 can be pushed to make the marking plate 118 contact with the marking pen 109 for marking. At the same time, the support rod 121 and the second spring 122 cooperate to drive the marking plate 118 to reset after the driving force is lost, thereby facilitating the movement of the measuring rod 107 and avoiding the situation where the measuring rod 107 smears the marking plate 118.

[0039] Preferably, the pushing assembly includes a servo motor 123 arranged above the base 101, a screw rod 124 is installed at the output end of the servo motor 123, a wedge plate 125 is arranged below the support rod 121, the end of the ball head rod 120 away from the column 112 is in contact with the surface of the wedge plate 125, a screw rod sleeve 126 is fixedly installed on the side of the wedge plate 125 close to the support plate 102, the screw rod 124 is threadedly connected to the screw rod sleeve 126, a third slider 127 is fixedly installed on the side of the wedge plate 125 close to the column 112, a third slide groove 128 is provided on the side of the support plate 102 close to the third slider 127, and the third slider 127 is slidably connected to the third slide groove 128.

[0040] In this embodiment, the servo motor 123 is installed on the right side of the base 101 by bolt fixing. After the measuring rod 107 moves to the measuring point, the servo motor 123 is turned on, and the servo motor 123 drives the screw rod 124 to rotate forward. The screw rod 124 cooperates with the screw rod sleeve 126 to drive the wedge plate 125 to move upward, and the inclined surface of the wedge plate 125 pushes the ball head rod 120, so that the ball head rod 120 pushes the marking plate 118 to move to the left, thereby completing the marking of the measuring point. The third slider 127 cooperates with the third slide groove 128 to ensure the stability of the up and down movement of the wedge plate 125, thereby facilitating the wedge plate 125 to push the ball head rod 120.

[0041] When in use, during measurement, the rock is first placed on the slide 104, and then the cylinder 106 is turned on. The cylinder 106 drives the positioning frame 105 to move downward, so that the positioning frame 105 presses and limits the rock. Then, through the resilience of the first spring 116, the first spring 116 drives the column 112 to move toward the middle, so that the measuring head 108 on the measuring rod 107 can be against the end face of the rock to be measured, thereby ensuring the accuracy of the measurement, and then the synchronization rod 111 and the fixing ring 110 cooperate to drive the two measuring rods 107 to move synchronously. The measuring rod 107 moves step by step to the measuring point in the vertical direction. After the measuring head 108 reaches a measuring point in the vertical direction, the servo motor 123 is turned on. The servo motor 123 drives the screw rod 124 to rotate forward. The screw rod 124 cooperates with the screw rod sleeve 126 to drive the wedge plate 125 to move upward. The inclined surface of the wedge plate 125 pushes the ball head rod 120, and then the ball head rod 120 pushes the marking plate 118 to move left, so that the marking pen 109 marks the corresponding measuring point on the marking plate 118. By moving the measuring rod 107 to A plurality of measuring points are reached, and a plurality of discrete marking points are formed on the marking plate 118 correspondingly at the same time, and then the plurality of discrete marking points on the marking plate 118 are connected, and by comparing and judging whether the connecting lines formed by the two discrete marking points on both sides of the dividing strip 119 are parallel, and then judging whether the measuring points selected in this vertical direction are parallel, and then obtaining the parallelism of the two end surfaces in this vertical direction, after the marking is completed, the servo motor 123 is controlled to reverse, and the screw rod 124 cooperates with the screw rod sleeve 126 to drive the wedge plate 125 to move downward, and after the ball head rod 120 loses the driving force, the second spring 122 drives the marking plate 118 to reset, so as to facilitate the movement of the measuring rod 107, and avoid the situation that the measuring rod 107 paints the marking plate 118, and finally after the parallelism measurement in this vertical direction is completed, the electric slide rail 103 and the slide table 104 cooperate to drive the fixed rock to move, so as to facilitate the measurement of the measuring points in multiple vertical directions on the two end surfaces of the rock, thereby ensuring the accuracy of the parallelism judgment of the two end surfaces, and solving the problem of cumbersome measurement steps and large amount of data calculation.

[0042] Example 2, reference Figures 1 to 9 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a device for measuring the parallelism of the two end faces of rock. The expansion assembly includes a fixed rod 201 arranged above the base 101, and both ends of the fixed rod 201 are welded with a first wedge block 203. The inner lower end of the column 112 is welded with a second wedge block 206, and the first wedge block 203 corresponds to the second wedge block 206. The side of the fixed rod 201 away from the positioning frame 105 is fixedly connected to a U-shaped rack frame 202, and the lower end of the screw rod 124 is fixedly installed with a winding drum 207. The outer wall of the winding drum 207 is wound with a traction rope 208, and the other end of the traction rope 208 is fixedly connected to the middle part of the U-shaped rack frame 202.

[0043] In this embodiment, before measuring the two end faces of the rock, the servo motor 123 is turned on first, and the servo motor 123 drives the screw rod 124 to reverse, and the winding drum 207 on the screw rod 124 reels the traction rope 208, and the traction rope 208 drives the U-shaped rack 202 and the fixed rod 201 to move to the right at the same time, and the first wedge block 203 on the fixed rod 201 pushes the second wedge block 206, thereby pushing the column 112 to slide outward along the direction of the second slide groove 117, and at the same time compressing the first spring 116, thereby achieving The fixing rod 201 has the effect of spreading the two columns 112 apart, thereby facilitating the slide 104 to drive the fixed rock to move to the right, so that the two end faces of the rock are in contact with the measuring head 108 on the measuring rod 107, eliminating the trouble of the staff manually spreading the columns 112, thereby improving the efficiency of rock measurement. At the same time, in the initial state of the first spring 116, the distance between the two columns 112 needs to be greater than the distance between the two end faces of the rock to be measured, thereby ensuring that the column 112 drives the measuring rod 107 to rest against the end face of the rock.

[0044] Specifically, the measuring and positioning assembly includes a positioning rack 210 arranged on the outside of the measuring rod 107, the positioning rack 210 is arranged on one side of the U-shaped rack frame 202, and the positioning rack 210 is meshed with the U-shaped rack frame 202, a fourth slider 204 is welded to the lower end of the U-shaped rack frame 202, a fourth slide groove 205 is opened at the upper end of the base 101, the fourth slider 204 is slidably connected with the fourth slide groove 205, and a third spring 209 is fixedly installed on one side of the U-shaped rack frame 202 close to the support plate 102, and the third spring 209 is sleeved on the outside of the traction rope 208.

[0045] In this embodiment, during the forward rotation of the servo motor 123, the screw rod 124 will release the wound traction rope 208. At this time, the third spring 209 will drive the U-shaped rack frame 202 to move to the left, so that the U-shaped rack frame 202 is engaged with the positioning rack 210, thereby positioning the position of the measuring rod 107 before marking, avoiding the influence of vibration or staff misoperation on the measuring rod 107 during the contact between the marking plate 118 and the marking pen 109, thereby causing data deviation. After the U-shaped rack frame 202 is in place, the screw rod 124 continues to rotate forward, thereby pushing the marking plate 118 after positioning, thereby ensuring the stability of the measuring rod 107, and then ensuring the accuracy of the marking point marking, and then ensuring the accuracy of the parallelism judgment.

[0046] The rest of the structure is the same as that of Example 1.

[0047] When in use, before measuring the two end faces of the rock, the servo motor 123 is turned on first, the servo motor 123 drives the screw rod 124 to reverse, the winding drum 207 on the screw rod 124 reels the traction rope 208, the traction rope 208 drives the U-shaped rack 202 and the fixed rod 201 to move rightward at the same time, the first wedge block 203 on the fixed rod 201 pushes the second wedge block 206, and then pushes the column 112 to slide outward along the direction of the second slide groove 117, and at the same time compresses the first spring 116, so as to achieve the fixing of the fixed rod 20 The two columns 112 are spread apart, so that the slide 104 can drive the fixed rock to move to the right, so that the two end faces of the rock are in contact with the measuring head 108 on the measuring rod 107. When marking, the U-shaped rack frame 202 is meshed with the positioning rack 210, so that the position of the measuring rod 107 is positioned before marking, so that the marking plate 118 can be pushed after positioning, thereby ensuring the stability of the measuring rod 107, and then ensuring the accuracy of the marking point, and then ensuring the accuracy of the parallelism judgment.

[0048] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, welding is preferred for all fixed connections. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for measuring the parallelism of two end faces of a rock, characterized by: include, A measuring mechanism (100), comprising a base (101), a positioning and pushing assembly arranged above the base (101) for positioning and pushing a rock, and a column (112) arranged above the base (101), a measuring assembly for measuring a rock end face being arranged on the inner side of the column (112), a support plate (102) being arranged on a side of the upper end of the base (101) away from the positioning and pushing assembly, a marking assembly for recording a plurality of measuring points and a pushing assembly for pushing the marking assembly being arranged between the support plate (102) and the column (112), and a measurement auxiliary mechanism (200) being arranged on a side of the column (112) away from the positioning and pushing assembly; The measurement auxiliary mechanism (200) comprises an expansion component arranged above the base (101) for expanding the column (112), and a measurement positioning component arranged between the column (112) and the support plate (102) for positioning the measurement component.

2. A device for measuring the parallelism of two end surfaces of rock according to claim 1, characterized in that: The positioning and pushing assembly comprises an electric slide rail (103) arranged above the base (101), and a slide table (104) arranged above the electric slide rail (103); a cylinder (106) is arranged on a side of the slide table (104) away from the column (112), and two cylinders (106) are arranged; a positioning frame (105) is installed at the output end of the cylinder (106), and the positioning frame (105) is arranged above the slide table (104).

3. A device for measuring the parallelism of two end surfaces of rock according to claim 2, characterized in that: The measuring assembly comprises a measuring rod (107) arranged on the inner side of the column (112); a measuring head (108) is arranged on the inner side of the measuring rod (107) at one end close to the positioning frame (105); a marking pen (109) is arranged on the end of the measuring rod (107) away from the positioning frame (105); a fixing ring (110) is welded to the upper end of the measuring rod (107); a synchronization rod (111) is arranged in the middle of the fixing ring (110); the size of the synchronization rod (111) matches the size of the fixing ring (110), and the synchronization rod (111) is movably connected to the fixing ring (110).

4. A device for measuring the parallelism of two end faces of rock according to claim 3, characterized in that: A first slide groove (113) is provided on the inner side of the column (112); a first slider (114) is provided on the side of the measuring rod (107) close to the first slide groove (113); the first slider (114) is slidably connected to the first slide groove (113); a second slider (115) is welded to the lower end of the column (112); a second slide groove (117) is provided on the upper end of the base (101); the second slider (115) is slidably connected to the second slide groove (117); first springs (116) are fixedly installed on both sides of the second slide groove (117); the other end of the first spring (116) is fixedly connected to the second slider (115).

5. A device for measuring the parallelism of two end faces of rock according to claim 4, characterized in that: The marking assembly comprises a marking plate (118) arranged between the upright column (112) and the support plate (102), a dividing strip (119) being arranged in the middle of the marking plate (118), a ball head rod (120) being fixedly mounted on a side of the marking plate (118) away from the upright column (112), a support rod (121) being arranged at the upper end of the ball head rod (120), one end of the support rod (121) passing through the upper end of the support plate (102) and being fixedly connected to the marking plate (118), and a second spring (122) being sleeved on the outer wall of the support rod (121).

6. A device for measuring the parallelism of two end faces of rock according to claim 5, characterized in that: The pushing assembly comprises a servo motor (123) arranged above the base (101), a screw rod (124) being installed at the output end of the servo motor (123), a wedge plate (125) being arranged below the support rod (121), and an end of the ball head rod (120) away from the column (112) being in contact with the surface of the wedge plate (125).

7. A device for measuring the parallelism of two end faces of rock according to claim 6, characterized in that: A screw sleeve (126) is fixedly mounted on one side of the wedge plate (125) close to the support plate (102); the screw (124) is threadedly connected to the screw sleeve (126); a third sliding block (127) is fixedly mounted on one side of the wedge plate (125) close to the column (112); a third sliding groove (128) is formed on one side of the support plate (102) close to the third sliding block (127); and the third sliding block (127) is slidably connected to the third sliding groove (128).

8. The device for measuring the parallelism of two end faces of rock according to claim 7, characterized in that: The expansion assembly comprises a fixing rod (201) arranged above the base (101), first wedge blocks (203) are welded to both ends of the fixing rod (201), a second wedge block (206) is welded to the inner lower end of the column (112), and the first wedge block (203) corresponds to the second wedge block (206), a side of the fixing rod (201) away from the positioning frame (105) is fixedly connected to a U-shaped rack frame (202), a winding drum (207) is fixedly installed at the lower end of the screw rod (124), a traction rope (208) is wound around the outer wall of the winding drum (207), and the other end of the traction rope (208) is fixedly connected to the middle part of the U-shaped rack frame (202).

9. The device for measuring the parallelism of two end faces of rock according to claim 8, characterized in that: The measuring and positioning assembly comprises a positioning rack (210) arranged on the outside of the measuring rod (107); the positioning rack (210) is arranged on one side of a U-shaped rack frame (202), and the positioning rack (210) is meshed with the U-shaped rack frame (202); a fourth slider (204) is welded to the lower end of the U-shaped rack frame (202); a fourth slide groove (205) is provided at the upper end of the base (101); the fourth slider (204) is slidably connected to the fourth slide groove (205); a third spring (209) is fixedly installed on one side of the U-shaped rack frame (202) close to the support plate (102), and the third spring (209) is sleeved on the outside of the traction rope (208).

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