Comparison type torque standard machine

Abstract

The invention relates to a comparison type torque standard machine, and relates to the technical field of torque standard machines, the torque standard machine comprises a box body and a detection device, the detection device comprises a placing table rotatably installed on the box body; the driving part is used for driving the placing table to rotate; the detection table is mounted on the box body in an up-down sliding manner; the lifting mechanism is used for driving the detection table to move; the detection piece is arranged on the detection table; the clamping mechanism is arranged on the placing table and the detection piece and matched with the placing table to clamp the detected piece, and the driving piece drives the placing table to rotate and is used for applying torsion to the detected piece and detecting the torque value through the detection piece. The detected part is clamped and positioned through the clamping mechanism, and the driving part and the detection part are matched to detect the torque of the detected part, so that the detection is more convenient, the detected torque is closer to an actual torque value, and the detection efficiency and accuracy are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of torque standard machine, and particularly to a comparison type torque standard machine. BACKGROUND

[0002] The torque standard machine is to take the gravity generated by the weight as the standard load, and automatically add the torque to the detected object in the predetermined order through the force arm lever mechanism.

[0003] The existing torque standard machine adjusts the torque by increasing or decreasing the weight, and needs to be tried for many times when the weight is increased or decreased, so as to cause a long time consumption and low efficiency. Meanwhile, the weight has a certain standard weight, so that the detected torque value of the detected piece is different from the actual torque value, thereby reducing the detection accuracy. SUMMARY

[0004] In order to improve the detection efficiency and accuracy, the present application provides a comparison type torque standard machine.

[0005] The comparison type torque standard machine provided by the present application adopts the following technical scheme: A comparison type torque standard machine, comprising a box body, a detection device arranged on the box body, the detection device comprising: A placement table rotatably installed on the box body; A driving piece for driving the placement table to rotate; A detection table slidably installed on the box body; A lifting mechanism for driving the detection table to move; A detection piece arranged on the detection table; A clamping mechanism arranged on the placement table and the detection piece and cooperating to clamp the detected piece, the driving piece drives the placement table to rotate and is used to apply a torsion to the detected piece and detect the torque value through the detection piece.

[0006] By adopting the above technical scheme, the detected piece is placed on the clamping mechanism on the placement table for clamping, the lifting mechanism drives the detection table and the detection piece to move downward, so that the detected piece is connected to the clamping mechanism on the detection piece for clamping, and then the driving piece is started to drive the placement table to rotate, so as to apply a torsion to the detected piece, and the detection piece detects the torque value, so as to detect the torque of the detected piece.

[0007] The clamping mechanism clamps and positions the detected piece, the driving piece and the detection piece cooperate to detect the torque of the detected piece, so that the detection is more convenient, and the detected torque is closer to the actual torque value, thereby improving the detection efficiency and accuracy.

[0008] Optionally, the clamping mechanism comprises: The tool No. 1 and the tool No. 2 are arranged on the placing table and the detection piece respectively and are respectively provided with the clamping groove No. 1 and the clamping groove No. 2 for clamping and positioning the detection piece.

[0009] Through the above technical scheme, the bottom end of the detection piece is inserted and installed on the clamping groove No. 1, the lifting mechanism drives the detection piece and the tool No. 2 to be close to the top end of the detection piece, so that the top end of the detection piece is inserted and installed on the clamping groove No. 2 for positioning, and the two ends of the detection piece are pressed on the clamping groove No. 1 and the clamping groove No. 2 for positioning, and then the torsion detection is started, which improves the positioning effect of the detection piece, saves the time spent for positioning, and further improves the detection efficiency and accuracy.

[0010] Optionally, the lifting mechanism comprises: a plurality of lifting lead screws rotatably arranged on the box body and threadedly connected with the detection table; a plurality of lifting speed reducers arranged on the box body and connected with the plurality of lifting lead screws and connected with each other through the linkage assembly; a lifting motor arranged on one of the lifting speed reducers and used to drive the lifting speed reducer to rotate.

[0011] Through the above technical scheme, the lifting motor drives the lifting speed reducer connected therewith to rotate, the lifting speed reducer drives other lifting speed reducers to rotate through the linkage assembly, the plurality of lifting speed reducers simultaneously drive the plurality of lifting lead screws to rotate, and the plurality of lifting lead screws drive the detection table to move, so as to realize the vertical movement of the detection table.

[0012] Optionally, the linkage assembly comprises: a plurality of linkage columns No. 1 arranged on the plurality of lifting speed reducers respectively; a linkage column No. 2 arranged on two adjacent linkage columns No. 1.

[0013] Through the above technical scheme, the linkage column No. 2 drives the two adjacent linkage columns No. 1 to rotate, so as to realize the simultaneous rotation of the plurality of lifting speed reducers.

[0014] Optionally, the tool No. 1 and the tool No. 2 are both provided with a guide assembly, the guide assembly is circumferentially arranged with a plurality of guide plates, and the guide assembly comprises: a guide plate rotatably arranged on the tool No. 1; a resilient member arranged on the tool No. 1 and the guide plate and making the distance between the plurality of guide plates close to one end of the tool No. 1 smaller than the distance away from one end of the tool No. 1, the plurality of guide plates being used to guide the detection piece to be inserted and installed on the clamping groove No. 1, and the detection piece being used to push the guide plate to abut against the detection piece for positioning after being inserted and installed on the clamping groove No. 1.

[0015] The detected piece is placed between the plurality of guide plates, and the detected piece is abutted on the guide plates after moving close to the first clamping groove, the plurality of guide plates can guide the position of the detected piece, the detected piece is driven to align with the first clamping groove after moving towards the first clamping groove, then the plurality of guide plates are tightly positioned on the detected piece, and the detected piece is further moved forward and is inserted and mounted on the first clamping groove for positioning.

[0016] Meanwhile, the plurality of guide plates on the second tooling are used to guide the position of the detected piece, so that the detected piece is aligned with the second clamping groove under the action of the plurality of guide plates, and the detected piece is positioned by being inserted and mounted on the second clamping groove, thereby saving the time spent in the insertion process, and enabling the detected piece to be inserted with the first clamping groove and the second clamping groove, thereby reducing the adverse effects of the force generated in the insertion process of the detected piece on the subsequent torque detection, and improving the detection efficiency and accuracy.

[0017] Optionally, the first tooling is connected with the placing table through a micro-motion mechanism, the micro-motion mechanism is unlocked to clamp and mount the detected piece on the first clamping groove, the second tooling is close to the detected piece and enables the detected piece to be clamped and mounted on the second clamping groove, and the first tooling can move to make room through the micro-motion mechanism during the clamping process, and the first tooling can be moved back to the original position under the elastic force of the micro-motion mechanism after the detection of the detected piece is completed and the detected piece is separated from the second clamping groove.

[0018] By adopting the above technical scheme, the detected piece is first inserted and mounted on the first clamping groove, and the second tooling is close to the detected piece, so that the top end of the detected piece is inserted and mounted on the second clamping groove for positioning, the micro-motion mechanism can move to make room when the force is generated between the detected piece and the second clamping groove during the clamping process, thereby reducing the force between the detected piece and the second clamping groove, and the first tooling can be moved back to the original position under the elastic force of the micro-motion mechanism after the detection of the detected piece is completed and the detected piece is separated from the second clamping groove, thereby facilitating making room in the subsequent detection process of the detected piece, and thus further improving the detection efficiency and accuracy.

[0019] Optionally, the micro-motion mechanism comprises: A fixed plate is arranged on the placing table and has a spherical surface protruding and spherical on the upper surface, and the lower surface of the first tooling is provided with a spherical groove matched with the spherical surface; A plurality of elastic components are arranged on the first tooling, the first tooling is provided with an avoidance hole through which the elastic components pass and enabling the elastic components to move to make room, and the plurality of elastic components can move the first tooling back to the original position; A positioning assembly is used to position the first tooling.

[0020] By adopting the technical scheme, the plurality of elastic assemblies can position the jig one position, during the process that the detected piece is inserted and installed on the clamping groove two, if the jig one is stressed, the gap between the elastic assembly and the avoiding hole can provide the jig one with a rotating position, after the detected piece is inserted and installed on the clamping groove one and the clamping groove two for positioning, the positioning assembly positions the jig one position, and then the detected piece is subjected to torque detection, the fixing plate rotates to drive the plurality of elastic assemblies, the fixing plate and the jig one to rotate, if the jig one and the fixing plate move relatively, The jig one rotates to make the elastic assembly abut on the avoiding hole to push the jig one and the fixing plate to rotate at the same time, after the detected piece is separated from the clamping groove two after detection is completed, the positioning assembly unlocks the jig one position, the jig one is rotated to the original position under the joint action of the plurality of elastic assemblies, the spherical surface and the spherical groove, so that the detection of the subsequent detected piece can be continued, and the detection efficiency and accuracy are improved.

[0021] Optionally, the elastic assembly comprises: The fixing rod is arranged on the fixing plate and has a diameter smaller than that of the avoiding hole and passes through the avoiding hole. The elastic piece is positioned by abutting on the fixing plate and the jig one at two ends. The locking piece is arranged on the fixing rod and positioned by abutting on the jig one.

[0022] By adopting the technical scheme, the fixing plate and the fixing rod rotate, the fixing rod abuts on the avoiding hole, so as to push the jig one to rotate, the plurality of elastic pieces support and position the jig one, and the locking piece can be removed to replace the elastic piece, so that the stability of the elastic force is realized, the jig one rotates to exert force on the elastic force, and after the detected piece is separated from the clamping groove two, the plurality of elastic pieces drive the jig one to rotate to the original position.

[0023] Optionally, the clamping groove one groove bottom is provided with a moving hole in communication with the spherical groove, and the positioning assembly comprises: The positioning piece is slidably installed in the moving hole. The elastic pad is arranged on the positioning piece close to one end of the spherical surface, and the detected piece is inserted and installed on the clamping groove two to push the positioning piece and the elastic pad close to the spherical surface and make the elastic pad abut on the spherical surface for positioning.

[0024] Through adoption of the technical scheme, the bottom end of the detected piece is inserted and installed on the first clamping groove, and then the top end of the detected piece is inserted and installed on the second clamping groove. In this process, the force of the detected piece on the positioning piece is small, so that the force between the elastic pad and the spherical surface is small, that is, the first tool is unlocked. When the detected piece abuts against the bottom of the second clamping groove, the bottom of the detected piece pushes the positioning piece and the elastic pad close to the spherical surface, so that the elastic pad is pressed on the spherical surface for positioning, thereby realizing automatic positioning of the first tool. After the top end of the detected piece is separated from the second clamping groove, the force of the detected piece on the positioning piece is reduced, thereby realizing unlocking of the position of the first tool.

[0025] Optionally, the first clamping groove and the second clamping groove are both provided with a guide corner for facilitating insertion of the detected piece.

[0026] Through adoption of the technical scheme, the guide corner can guide the insertion and installation of the detected piece on the first clamping groove and the second clamping groove.

[0027] In summary, the present application has at least one of the following beneficial technical effects: 1. The detected piece is clamped and positioned by the clamping mechanism, the driving piece and the detection piece cooperate to detect the torque of the detected piece, so that the detection is more convenient, the detected torque is closer to the actual torque value, and the detection efficiency and accuracy are improved.

[0028] 2. The detected piece is first inserted and installed on the first clamping groove and then inserted and installed on the second clamping groove through the multiple guide plates, so that the detected piece is aligned with the first clamping groove and the second clamping groove before being inserted, thereby reducing the adverse effects of the force generated during the insertion of the detected piece on the subsequent torque detection, and improving the detection efficiency and accuracy.

[0029] 3. When the detected piece generates a force between the first clamping groove and the second clamping groove, the micro-motion mechanism can move slightly to give way, thereby reducing the force between the detected piece and the second clamping groove. After the detected piece is detected and separated from the second clamping groove, the first tool can be returned to the original position under the elastic force of the micro-motion mechanism, thereby facilitating the subsequent detection of the detected piece, and further improving the detection efficiency and accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a perspective structural schematic view of a torque standard machine embodiment 1; Figure 2 is a structural schematic view of the torque standard machine embodiment 1, with the box omitted; Figure 3 is an enlarged schematic view of part A in Figure 2 Figure 4 is a partial structural schematic view of a torque standard machine embodiment 2; ​Figure 5 is Figure 4 is a cross-sectional view of B-B in FIG. 1; Figure 6 is a partial cross-sectional view of a torque standard machine embodiment 2, and is in a state after a detected piece is inserted into slot one and slot two.

[0031] The figure mark: 1, box; 11, mounting plate; 12, support column; 13, mounting seat; 2, detection device; 21, placing table; 22, driving piece; 23, detection table; 24, detection piece; 3, lifting mechanism; 31, lifting screw; 32, lifting speed reducer; 33, lifting motor; 4, linkage assembly; 41, linkage column one; 42, linkage column two; 43, synchronization key; 44, synchronization groove; 45, linkage groove; 5, clamping mechanism; 51, tool one; 52, tool two; 53, moving hole; 6, guide assembly; 61, guide plate; 62, elastic piece; 63, rotating shaft; 7, micro-motion mechanism; 71, fixed plate; 72, spherical surface; 73, spherical groove; 74, bearing plate; 75, avoidance hole; 8, elastic force assembly; 81, fixed rod; 82, elastic piece; 83, locking piece; 9, positioning assembly; 91, positioning piece; 92, elastic pad. DETAILED DESCRIPTION

[0032] The application is further described below.

[0033] The application discloses a comparison type torque standard machine.

[0034] Embodiment 1, refer to Figure 1 and Figure 2 The comparison type torque standard machine comprises a box 1 and a detection device 2 arranged on the box 1, wherein the detection device 2 is used for detecting the torque of a detected piece.

[0035] The detection device 2 comprises a placing table 21, a driving piece 22, a detection table 23, a lifting mechanism 3, a detection piece 24 and a clamping mechanism 5, the box 1 is fixedly provided with a mounting plate 11 in a horizontal state, four support columns 12 are arranged on the upper surface of the mounting plate 11 in a horizontal and spaced manner, the four support columns 12 are in a vertical state and the top ends of the four support columns 12 are fixedly provided with a horizontal mounting seat 13; the placing table 21 is rotatably arranged on the upper surface of the mounting plate 11, the driving piece 22 is fixedly arranged on the lower surface of the mounting plate 11, the driving piece 22 is a servo motor, the output shaft of the driving piece 22 is fixedly connected with the placing table 21 and is used for driving the placing table 21 to rotate.

[0036] The detection table 23 is vertically slidingly installed on the four support columns 12, and the lifting mechanism 3 is used to drive the vertical movement of the detection table 23; the lifting mechanism 3 comprises a plurality of lifting lead screws 31, a plurality of lifting reducers 32 and a lifting motor 33, the plurality of lifting lead screws 31 are vertically arranged and horizontally spaced, the two ends of the lifting lead screws 31 are rotatably installed on the opposite two side walls of the mounting plate 11 and the mounting seat 13 and are all threadedly connected with the detection table 23, the top ends of the plurality of lifting lead screws 31 extend above the mounting seat 13, and the plurality of lifting lead screws 31 simultaneously rotate to drive the vertical movement of the detection table 23; the plurality of lifting reducers 32 are arranged one by one corresponding to the plurality of lifting lead screws 31, the lifting reducers 32 are fixedly installed on the upper surface of the mounting seat 13, and the output shafts of the lifting reducers 32 are fixedly connected with the lifting lead screws 31.

[0037] Referring to Figure 2 and Figure 3 , the plurality of lifting reducers 32 are connected with each other through the linkage assembly 4, the linkage assembly 4 comprises a plurality of linkage columns one 41 and linkage columns two 42, the plurality of linkage columns one 41 are arranged corresponding to the plurality of lifting reducers 32 and are connected with the lifting reducers 32, the linkage column one 41 rotatably drives the lifting reducer 32 connected therewith to rotate; the linkage column two 42 connects the adjacent two linkage columns one 41, the adjacent two linkage columns one 41 are provided with linkage grooves 45 on the opposite ends, the linkage grooves 45 are provided with synchronous grooves 44, the linkage column two 42 is inserted and installed on the two linkage grooves 45 and is fixedly installed with the synchronous keys 43 inserted and installed on the two synchronous grooves 44, so as to realize the connection of the plurality of lifting reducers 32 with each other, thereby realizing the synchronous rotation of the plurality of lifting lead screws 31.

[0038] The detection piece 24 is fixedly installed on the lower surface of the detection table 23, and the detection piece 24 is used to detect the torque; the clamping mechanism 5 comprises a tool one 51 and a tool two 52, the tool one 51 is fixedly installed on the upper surface of the placement table 21, and the upper surface of the tool one 51 is provided with a clamping groove one, the tool two 52 is fixedly installed on the lower surface of the detection piece 24 and is arranged corresponding to the tool one 51, the lower surface of the tool two 52 is provided with a clamping groove two, the two ends of the detected piece are inserted and installed on the clamping groove one and the clamping groove two and are positioned on the groove bottoms of the clamping groove one and the clamping groove two, the clamping groove one and the clamping groove two are both regular polygons and are designed according to different detected pieces, so that the two ends of the detected piece are fixedly connected with the tool one 51 and the tool two 52; the clamping groove one and the clamping groove two are both provided with guide corners, the guide corners guide when being inserted, so that the detected piece is more convenient to be inserted and installed on the clamping groove one and the clamping groove two.

[0039] The bottom end of the detected part is inserted and installed on the first clamping groove and positioned against the bottom of the first clamping groove. The lifting motor 33 is started to drive the plurality of lifting lead screws 31 to rotate simultaneously, thereby driving the detection table 23, the detection part 24 and the second tool 52 to move downward, so that the top end of the detected part is inserted and installed on the second clamping groove for positioning, and the top end of the detected part is positioned against the bottom of the second clamping groove. The driving part 22 drives the placement table 21 to rotate, thereby applying a torsion to the detected part, and the detection part 24 is used to detect the torque of the detected part, thereby detecting the torque of the detected part. After detection is completed, the lifting motor 33 is started to drive the second tool 52 to move upward, so that the detected part is separated from the second clamping groove, thereby improving detection efficiency and accuracy.

[0040] The working principle of the embodiment of the present application is as follows: The bottom end of the detected part is inserted and installed on the first clamping groove, and the lifting motor 33 is started to drive the second tool 52 to move downward, so that the top end of the detected part is inserted and installed on the second clamping groove and positioned against the bottom of the second clamping groove. The driving part 22 drives the placement table 21 to rotate, thereby detecting the torque of the detected part. After detection is completed, the lifting motor 33 is started to drive the second tool 52 to move upward, so that the detected part is separated from the second clamping groove, thereby improving detection efficiency and accuracy.

[0041] Embodiment 2, refer to Figure 1 and Figure 4 The difference between the present embodiment and embodiment 1 is that a plurality of guide assemblies 6 are arranged on the first tool 51 and the second tool 52. The plurality of guide assemblies 6 are arranged in a circular array around the center line of the first tool 51. The guide assemblies 6 are used to guide the insertion and installation of the detected part on the first clamping groove and the second clamping groove, so that the detected part is more convenient to be inserted and installed on the first clamping groove and the second clamping groove for positioning, and the detected part is aligned with the first clamping groove and the second clamping groove. The influence of the action force on the subsequent detection during the insertion process of the detected part is reduced, thereby improving the detection efficiency and quality.

[0042] And / or, the first tool 51 is connected to the placement table 21 through a micro-motion mechanism 7. The micro-motion mechanism 7 can move to make room when the detected part is inserted and subjected to an action force, thereby reducing the action force during the insertion process, and facilitating the insertion and installation of the detected part on the first clamping groove and the second clamping groove, thereby reducing the influence of the action force on the subsequent detection during the insertion process of the detected part, and improving the detection efficiency and quality.

[0043] Refer to Figures 4-6The guiding assembly 6 located on the tool 51 is taken as an example to be explained below. The guiding assembly 6 comprises a guiding plate 61 and an elastic member 62. The bottom end of the guiding plate 61 is rotatably installed on the upper surface of the tool 51 through a rotating shaft 63. The elastic member 62 is a spring. One end of the elastic member 62 is fixedly installed on the upper surface of the tool 51. The other end of the elastic member 62 is obliquely upwardly extended to below the rotating shaft 63 and is fixedly connected with the guiding plate 61. The plurality of elastic members 62 make the plurality of guiding plates 61 in an inclined state, so that the distance between the bottom ends of the plurality of guiding plates 61 is smaller than the distance between the top ends.

[0044] The detected piece is placed between the plurality of guiding plates 61 located on the tool 51. The detected piece pushes the guiding plates 61 to rotate by abutting against the guiding plates 61. The plurality of guiding plates 61 can guide the position of the detected piece, so that the detected piece moves to be aligned with the clamping groove I, until the detected piece is inserted and installed into the clamping groove I and is positioned by abutting against the groove bottom of the clamping groove I. The tool 52 drives the plurality of guiding plates 61 to move close to the detected piece. The detected piece moves to be between the plurality of guiding plates 61 located on the tool 52 and is in contact with the guiding plates 61. The detected piece pushes the guiding plates 61 to rotate. The guiding plates 61 can guide the position of the detected piece, so that the detected piece is aligned with the clamping groove II before being inserted and installed into the clamping groove II. The detected piece is positioned by abutting against the groove bottom of the clamping groove II. The convenience in the insertion process is improved, and the detected piece is less affected by the force during the insertion process to cause adverse effects on subsequent detection.

[0045] The micro-motion mechanism 7 comprises a fixed plate 71, a plurality of elastic assemblies 8 and a positioning assembly 9. The fixed plate 71 is fixedly installed on the top end of the placement table 21. A spherical surface 72 protruding and in a spherical shape is fixedly installed on the upper surface of the fixed plate 71. A spherical groove 73 abutting against the spherical surface 72 is formed in the bottom of the tool 51. The plurality of elastic assemblies 8 are circumferentially arranged around the center line of the tool 51 and are used to maintain the position of the tool 51 under the elastic force. In the initial state, the center line of the tool 51 and the axis of the spherical surface 72 coincide. The tool 51 is provided with avoidance holes 75 for the elastic assemblies 8 to pass through and enable the elastic assemblies 8 to move to make room. The plurality of elastic assemblies 8 can make the tool 51 return to the original position, i.e., the initial state, after the force disappears.

[0046] The plurality of elastic components 8 correspond to the plurality of bearing plates 74 fixedly installed on the outer side wall of the tool 1, and the avoidance hole 75 is arranged on the bearing plate 74; the elastic component 8 comprises a fixed rod 81, an elastic piece 82 and a locking piece 83, the fixed rod 81 is fixedly installed on the upper surface of the fixed plate 71, and the diameter of the fixed rod 81 is smaller than the diameter of the avoidance hole 75, and the fixed rod 81 vertically penetrates through the avoidance hole 75 to above the bearing plate 74, and in the initial state, the fixed rod 81 is coaxially arranged with the avoidance hole 75; the elastic piece 82 is a spring, the elastic piece 82 is sleeved on the fixed rod 81 and the two ends are abutted on the opposite two side walls of the fixed plate 71 and the bearing plate 74, and the locking piece 83 is a locking nut, the locking piece 83 is threadedly connected on the fixed rod 81 and is abutted on the upper surface of the bearing plate 74 for positioning.

[0047] The slot bottom is provided with a moving hole 53 communicated with the spherical groove 73, the positioning component 9 comprises a positioning piece 91 and an elastic pad 92, the positioning piece 91 is vertically slidably installed on the moving hole 53, the elastic pad 92 has elasticity, and the elastic pad 92 is fixedly installed on the bottom end of the positioning piece 91 and forms an elastic surface abutting with the spherical surface 72; the tool 2 can drive the positioning piece 91 to move downward and make the elastic pad 92 abut on the spherical surface 72 for positioning.

[0048] The bottom end of the detected piece is inserted into the slot 1 for positioning, the tool 2 moves downward and makes the top end of the detected piece inserted into the slot 2, and the tool 1 can move for avoiding under the action of the avoidance hole 75 in the inserting process, after the detected piece is inserted into the slot 2, the tool 1 and the tool 2 are aligned, and the tool 1 does not need to move; the tool continues to move downward, so that the top end of the detected piece abuts on the slot bottom of the slot 2 and the slot 1 for positioning, the positioning piece 91 is driven to move by the detected piece, and the elastic pad 92 abuts on the spherical surface 72 for positioning, thereby improving the convenience in the inserting process and reducing the adverse effect of the acting force on the detected piece in the inserting process on the subsequent detection.

[0049] The detection table 23 rotates to drive the fixed plate 71 to rotate, the fixed plate 71 drives the spherical surface 72 and the tool 1 to rotate at the same time, so as to realize the detection of the torque of the detected piece, and when the spherical surface 72 and the tool 1 relatively displace, the fixed plate 71 drives the plurality of fixed rods 81 to rotate, so that the fixed rod 81 abuts on the avoidance hole 75 to drive the tool 1 to rotate at the same time, thereby improving the detection accuracy, and after the action force on the fixed plate 71 and the tool 1 disappears, under the action of the spherical surface 72, the spherical groove 73 and the plurality of elastic pieces 62, the tool 1 moves back to the original position, i.e. the initial position, thereby improving the detection efficiency and accuracy.

[0050] The working principle of the embodiment of the application is as follows: The detected piece is placed between the plurality of guide plates 61 on the tool 1 51, and the detected piece is moved and guided under the action of the plurality of guide plates 61, so that the detected piece is inserted and mounted on the card slot 1 after being aligned with the card slot 1. The tool 2 52 is lowered, so that the detected piece is inserted and mounted on the card slot 2 after being aligned with the card slot 2 under the action of the plurality of guide plates 61, and the tool 1 51 is moved under the action of the avoiding hole 75 to realize the avoiding during the inserting process. The tool continues to move downward, so that the two ends of the detected piece are positioned on the groove bottoms of the card slot 1 and the card slot 2, and the elastic piece 62 of the detected piece is positioned on the spherical surface 72. The detection table 23 rotates to drive the tool 1 51 to rotate at the same time, so that the torque of the detected piece is detected, and the detection efficiency and accuracy are improved.

[0051] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A comparison torque standard machine characterized by: The utility model relates to a detection device for detecting torque value of a workpiece, which comprises a box (1), a detection device (2) arranged on the box (1), the detection device (2) comprising: a placing table (21) rotatably arranged on the box (1); a driving member (22) for driving the placing table (21) to rotate; a detection table (23) slidably arranged on the box (1); a lifting mechanism (3) for driving the detection table (23) to move; a detection member (24) arranged on the detection table (23); a clamping mechanism (5) arranged on the placing table (21) and the detection member (24) and cooperating to clamp the workpiece, the driving member (22) drives the placing table (21) to rotate and applies a torsional force to the workpiece, and the detection member (24) detects the torque value.

2. A comparison torque standard machine according to claim 1, characterized in that: The clamping mechanism (5) comprises: a tool one (51) and a tool two (52) arranged on the placing table (21) and the detection member (24) respectively and provided with a clamping groove one and a clamping groove two respectively for clamping the workpiece and positioning the workpiece.

3. A comparison torque standard machine according to claim 1, characterized in that: The lifting mechanism (3) comprises: a plurality of lifting lead screws (31) rotatably arranged on the box (1) and threadedly connected with the detection table (23); a plurality of lifting speed reducers (32) arranged on the box (1) and connected with the plurality of lifting lead screws (31) respectively and connected with each other through a linkage assembly (4); a lifting motor (33) arranged on one of the lifting speed reducers (32) and used for driving the lifting speed reducer (32) to rotate.

4. A comparison torque standard machine according to claim 3, characterized in that: The linkage assembly (4) comprises: a plurality of linkage columns one (41) arranged on the plurality of lifting speed reducers (32) respectively; a linkage column two (42) arranged on two adjacent linkage columns one (41).

5. A comparison torque standard machine according to claim 2, characterized in that: The tool one (51) and the tool two (52) are provided with a guide assembly (6), the guide assembly (6) is circumferentially arranged with a plurality of guide plates (61) around the center line of the clamping groove one, the guide assembly (6) comprises: a guide plate (61) rotatably arranged on the tool one (51); a resilient member (62) arranged on the tool one (51) and the guide plate (61) and making the distance between the guide plates (61) close to one end of the tool one (51) smaller than the distance between the guide plates (61) away from one end of the tool one (51), the plurality of guide plates (61) are used for guiding the workpiece to be inserted and arranged on the clamping groove one, and the guide plates (61) are pushed against the workpiece to be positioned after the workpiece is inserted and arranged on the clamping groove one.

6. A comparison type torque standard machine according to claim 2, characterized by: The tool one (51) is connected with the placing table (21) through a micro-motion mechanism (7), the workpiece is clamped and arranged on the clamping groove one after the micro-motion mechanism (7) is unlocked, the tool two (52) is close to the workpiece and makes the workpiece clamped and arranged on the clamping groove two, and the tool one (51) can move to make room through the micro-motion mechanism (7) during the clamping process, and the tool one (51) can be moved back to the original position under the elastic force of the micro-motion mechanism (7) after the workpiece detection is completed and the workpiece is separated from the clamping groove two.

7. A comparison torque standard machine according to claim 6, characterized in that: The micro-motion mechanism (7) comprises: A fixing plate (71) is arranged on the placing table (21) and has a spherical surface (72) protruding and spherical on the upper surface, and the lower surface of the tooling (51) is provided with a spherical groove (73) matched with the spherical surface (72); A plurality of elastic components (8) are arranged on the tooling (51) at intervals, the tooling (51) is provided with an avoiding hole (75) through which the elastic component (8) passes and enables the elastic component (8) to move to make room, and the plurality of elastic components (8) enable the tooling (51) to move back to the original position; A positioning component (9) is used for positioning the position of the tooling (51).

8. A comparison torque standard machine according to claim 7, characterized in that: The elastic component (8) comprises: A fixing rod (81) is arranged on the fixing plate (71) and has a diameter smaller than that of the avoiding hole (75) and passes through the avoiding hole (75); An elastic piece (82) is positioned by being pressed at both ends on the fixing plate (71) and the tooling (51); A locking piece (83) is arranged on the fixing rod (81) and is positioned by being pressed on the tooling (51).

9. A comparison torque standard machine according to claim 7, characterized in that: The slot bottom of the clamping slot one is provided with a moving hole (53) communicated with the spherical groove (73), and the positioning component (9) comprises: A positioning piece (91) is slidably installed in the moving hole (53); An elastic pad (92) is arranged on one end of the positioning piece (91) close to the spherical surface (72), and the detected part is clamped and installed in the clamping slot two, and then the positioning piece (91) and the elastic pad (92) close to the spherical surface (72) are pushed to make the elastic pad (92) press on the spherical surface (72) to be positioned.

10. The torque standard machine of claim 2, wherein: The clamping slot one and the clamping slot two are both provided with a guide angle facilitating the detected part to be put in.

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