CN109269447B - Recycling lead screw accuracy detection device - Google Patents

Abstract

The utility model relates to a detection device for the precision of a recovered lead screw, which belongs to the technical field of detection machinery. Including a testing platform, the side facing upwards has front and rear guide rails of the moving frame, and on the testing platform there is an adjustment guide rail for the left support seat of the tested lead screw, corresponding to the position of the front and rear sides of the adjustment guide rail for the left support seat of the tested lead screw Trapezoidal bolt grooves are also provided for each; the mobile frame has lifting platform guide rails I and II on the right side; the left and right displacement driving mechanism of the mobile frame is set on the testing platform; the driving mechanism of the screw to be tested is set on the testing platform; The screw nut slider is sleeved on the tested lead screw; the righting mechanism of the tested lead screw nut slider is matched with the guide rails I and II of the lifting platform; the lifting platform lifting driving mechanism is located on the right side of the moving frame; The CCD camera that the bar jumps up and down is located at the lower part of the front side of the moving frame; the CCD camera is offset from the front and rear of the tested lead screw and is located on the righting mechanism of the tested lead screw nut slider. Improve testing efficiency; ensure the smooth progress of testing; save resources.

Description

Recycling lead screw accuracy detection device

technical field

The invention belongs to the technical field of detection machinery, and in particular relates to a precision detection device for a recovered lead screw.

Background technique

The recycling screw mentioned above (also called "recycling screw" or "recycling screw", the same below) refers to the scrapped or scrapped electromechanical equipment with a screw drive mechanism to be recycled. Reuse of the lead screw, because the integrity rate of the lead screw as the structural system of the lead screw transmission mechanism when these devices are scrapped is high, especially: even if the lead screw has straightness defects, it can be determined according to the degree of straightness defects. It is applied to other electromechanical equipments that have a significant level of transmission accuracy. Therefore, if the lead screw on the scrapped electromechanical equipment is regarded as scrap copper and rotten iron, it will undoubtedly lead to waste of resources, which is contrary to the spirit of saving and energy-saving economy and the spirit of circular economy actively advocated by the whole society.

At present, the lead screw unloaded from waste electromechanical equipment is usually judged by looking and combining experience whether the straightness problem is so serious that it cannot be reused. Human subjective or intuitive judgment has a certain blindness, because the results of the judgment vary from person to person, which is unscientific and reasonable, and even if the same person judges the same lead screw at different times and/or Judgments made in different places can also produce different or even opposite results.

Various technical information about the detection of the straightness of the lead screw can be found in the published Chinese patent documents. Typically, CN102889863B recommends "An automatic detection device for the straightness of the lead screw and its application". This patent is suitable for screw manufacturers to The straightness of the produced lead screw is tested to ensure the quality of the product. On the surface, the structure of the CN102889863B can be used to detect the straightness of the recycled lead screw. In fact, it is not because of the following aspects: First, due to The difference in the quality index concentricity of the same batch of screws of the same specification produced by the screw manufacturers is basically minimal. This is because there are strict quality control requirements for each process link in the production process. Therefore, when the standard screw (the patent is called "ball screw") is used to test the tested screw according to the method taught in this patent, the tested screw will not affect the moving measuring table (ie "moving frame", the same as below). ) (see paragraph 0039 of the specification of the patent), however the lead screw removed from the end-of-life equipment inevitably has significant differences from the standard lead screw, such as when the straight line removed from the end-of-life equipment is When the lead screw with large difference in degree is detected, the mobile measuring table cannot be moved smoothly, resulting in test failure, or the standard lead screw is damaged due to the frequent beating of the mobile measuring table; If the table is slidingly matched, the relationship between the standard lead screw, the measured lead screw and the mobile measuring table is out of touch due to the fact that the transmission coordination relationship between the measured lead screw and the measuring platform is substantially released, and the straightness of the measured lead screw is disjointed. It cannot be measured based on the standard lead screw; thirdly, since the patent teaches that the standard lead screw rotates synchronously with the measured lead screw (paragraph 003, lines 7 to 8 of the specification), the mobile measuring table must be simultaneously connected with the standard lead screw. The screw thread and the screw under test are matched to ensure that the mobile measuring table slides along the first and second moving guide rails called in the patent during the test process. The straightness of the bar is serious (large deflection), so the mobile measuring table often cannot slide along the first and second driving guide rails, and even stays on the first and second moving guide rails due to the boring motor of the power mechanism. Based on the factors that are not limited to the foregoing, it is necessary to design a special device suitable for the detection of waste lead screws, and the technical solutions to be introduced below are generated under this background.

SUMMARY OF THE INVENTION

The task of the present invention is to provide a method that helps to reflect a good automatic detection effect, improves the detection efficiency, saves valuable labor resources, and is beneficial to avoid the interference effect on the normal movement of the moving frame due to the vibration of the recovery screw during the detection process. It can ensure the smooth progress of the detection, be beneficial to accurately measure the straightness of the recovered lead screw, provide a reference basis for the recovered lead screw to be used for equipment with different transmission accuracy requirements, and reflect the resource-saving recovery lead screw accuracy detection device.

The task of the present invention is accomplished in this way, a recovery lead screw accuracy detection device includes a detection platform, and a front guide rail and a rear guide rail of the mobile frame are fixed on the upward side of the detection platform, and the corresponding The position between the front guide rail of the moving frame and the left end of the rear guide rail of the moving frame is provided with a left support seat of the screw under test, and a position corresponding to the position between the front guide rail of the moving frame and the right end of the rear guide rail of the moving frame is provided with a screw screw under test. The right support base, the left and right support bases of the tested lead screw correspond to each other left and right, wherein, on the test platform and between the left ends of the front and rear guide rails corresponding to the moving frame, parallel to the long side direction of the test platform. There is an adjustment guide rail for the left support seat of the tested lead screw, and a trapezoidal bolt slot is provided at the front and rear positions corresponding to the length direction of the left support seat adjustment guide rail of the tested lead screw. The bottom center position of the left support seat of the lead screw is slidably matched with the adjustment guide rail of the left support seat of the tested lead screw, and the front and rear ends of the left support seat of the tested lead screw are fixed to the detection platform at the positions corresponding to the trapezoidal bolt grooves; The lower part of the front side of the moving frame is slidingly matched with the front rail of the moving frame, and the lower part of the rear side of the moving frame is slidingly matched with the rear rail of the moving frame, and a longitudinal state is fixed on the right side of the moving frame. Lifting table guide rail I and a lifting table guide rail II, the lifting table guide rail I and lifting table guide rail II are parallel to each other in front and back; a moving frame left and right displacement drive mechanism, the moving frame left and right displacement driving mechanism is corresponding to the rear guide rail of the moving frame. The position of the rear side is set on the detection platform, and the lower part of the rear side of the moving frame is connected with the left and right displacement driving mechanism of the moving frame; a tested screw driving mechanism, the tested screw driving mechanism is corresponding to the The position of the right side of the right support seat of the tested lead screw is set on the test platform; a tested lead screw nut slider, the tested lead screw nut slider is slidably sleeved on the tested lead screw nut when in use On the lead screw; a tested lead screw nut slide block centralizing mechanism for preventing the tested lead screw nut slide block from tilting, and the tested lead screw nut slide block centralizing mechanism is in contact with the tested lead screw nut slide block. The upper part is in a state of magnetic attraction and slidingly cooperates with the lift table guide rail I and the lift table guide rail II; a lift table lift drive mechanism, the lift table lift drive mechanism is corresponding to the tested lead screw nut slider centering mechanism The upper position is set on the right side of the moving frame and is connected with the centralizing mechanism of the tested lead screw nut slider; a tested lead screw jumps up and down the CCD camera, and the tested lead screw jumps up and down the CCD camera in the corresponding position. The position of the front side of the tested lead screw is set at the lower part of the front side of the moving frame; a tested lead screw is offset from the CCD camera back and forth, and the tested lead screw is offset from the CCD camera back and forth in the corresponding position of the tested lead screw. The upper position of the rod is set on the righting mechanism of the tested lead screw nut slider.

In a specific embodiment of the present invention, a left support groove of the tested lead screw is formed on the side facing upward of the left support seat of the tested lead screw, and a left support seat of the tested lead screw facing upward is formed. A right support groove of the tested lead screw is formed on the side, and the upper part of the left support groove of the tested lead screw and the right support groove of the tested lead screw forms an opening.

In another specific embodiment of the present invention, the shape of the left support groove of the tested lead screw and the right support groove of the tested lead screw is a V-shape, a semicircle or a U-shape.

In yet another specific embodiment of the present invention, a front sliding guide shoe of the moving frame is fixed on the lower part of the front side of the moving frame, and a pair of guide shoes for the front sliding guide shoe of the moving frame is fixed on the bottom of the front sliding guide shoe of the moving frame Slider, the pair of front sliding guide shoes of the moving frame is slidably matched with the front guide rail of the moving frame; a rear sliding guide shoe of the moving frame is fixed on the lower part of the rear side of the moving frame, and the sliding guide shoe is slidably guided at the rear of the moving frame The bottom of the shoe is fixed with a pair of moving frame rear sliding guide shoe guide blocks, the pair of moving frame rear sliding guide shoe guide blocks slidingly cooperate with the moving frame rear guide rail, wherein, the moving frame rear sliding guide shoe The lower part of the rear side is connected with the left and right displacement driving mechanism of the moving frame arranged on the detection platform; the CCD camera of the tested lead screw up and down is arranged on the front sliding guide shoe of the moving frame.

In yet another specific embodiment of the present invention, the left and right displacement drive of the moving frame includes a left and right displacement driving motor of the moving frame, a left and right displacement driving screw of the moving frame, and a left and right displacement driving nut of the moving frame. The drive motor is fixed on the detection platform at a position corresponding to the rear side of the right end of the rear guide rail of the moving frame through the left and right displacement drive motor seat of the moving frame, and the left and right displacement driving screw of the moving frame corresponds to the rear side of the rear guide rail of the moving frame and Parallel to the rear guide rail of the moving frame, the left end of the left and right displacement driving screw of the moving frame is rotatably supported on the first bearing seat I of the left and right displacement driving screw of the moving frame, and the right end of the left and right displacement driving screw of the moving frame is rotatably supported on the left and right displacement of the moving frame. On the second bearing seat II of the driving screw and extending to the right side of the second bearing seat II of the left and right displacement of the moving frame, the second bearing seat II of the moving frame is connected with the driving motor for the left and right displacement of the moving frame. The first bearing seat I of the left and right displacement driving screw of the moving frame and the second bearing seat II of the left and right displacement driving screw of the moving frame are fixed to the detection platform, and the left and right displacement driving motor of the moving frame is a forward and reverse function. For the motor, a drive nut connecting plate is connected to the lower part of the rear side of the rear sliding guide shoe of the moving frame.

In yet another specific embodiment of the present invention, the tested lead screw drive mechanism includes a tested lead screw drive motor and a universal joint, and the tested lead screw drive motor is in a position corresponding to the tested lead screw drive motor. The position of the right side of the right support seat of the test screw is fixed on the test platform through the test screw drive motor base, and the right end of the universal coupling is connected to the tested screw drive motor shaft of the tested screw drive motor. The coupling is hinged, and the right end of the tested lead screw is temporarily connected with the left end of the universal joint in the detection state.

In a more specific embodiment of the present invention, the centralizing mechanism of the tested lead screw nut slider comprises a lifting table, a magnet fixing seat and a magnet, and the front end of the lifting table faces the side of the moving frame The front sliding block I of the lifting platform is slidably matched with the lifting platform guide rail I, and the rear end of the lifting platform is also slidably matched with the lifting platform guide rail II through the rear sliding block II of the lifting platform, which is also facing the side of the moving frame. The magnet fixing seat corresponds to the right side of the lifting table, the upper end of the magnet fixing seat is fixed with the middle part of the right side of the lifting table, and the lower end extends toward the direction of the tested lead screw nut slider, and the magnet is fixed on the magnet fixing seat. The lower end is magnetically attracted to the nut slider of the tested lead screw, and the lifting table lifting drive mechanism is connected to the lifting table at a position corresponding to the upper part of the lifting table; the tested lead screw is offset from the CCD forward and backward. The camera is fixed on the right middle of the magnet holder.

In a further specific embodiment of the present invention, a lifting table nut seat is formed in the middle of the lifting table and at a position corresponding to the position between the front sliding block I of the lifting table and the rear sliding block II of the lifting table. The lifting table nut seat is provided with a lifting table driving screw matching nut; the lifting table lifting driving mechanism includes a driving motor fixing seat, a lifting table driving motor and a lifting table driving screw, and the driving motor fixing seat is corresponding to the lifting table. The position between the guide rail I and the upper end of the guide rail II of the lifting table is fixed with the right side of the moving frame, the driving motor of the lifting table is fixed with the driving motor fixing seat, and the driving motor shaft of the lifting table driving motor of the lifting table is facing downward, and the lifting table The upper end of the driving screw is connected with the drive motor shaft of the lift table in a driving connection, and the lower end of the driving screw of the lift table is drivingly matched with the driving screw of the lift table with the nut.

In yet another specific embodiment of the present invention, the lift table driving motor is a motor with a forward and reverse rotation function.

One of the technical effects of the technical solution provided by the present invention is that when the tested lead screw is to be detected, it is only necessary to put the tested lead screw on the tested lead screw nut slider and place both ends on the tested lead screw respectively. The left support seat and the right support seat of the screw under test are temporarily connected to the right end of the screw under test and the drive mechanism of the screw under test. The left and right displacement drive mechanism of the moving frame drives the moving frame to move along the front and rear rails of the moving frame. During the movement process, the moving frame drives the tested lead screw to move up and down the CCD camera, and drives the tested lead screw nut slider centralizing mechanism to move, and the tested lead screw nut slider centralizing mechanism drives the tested lead screw to offset the CCD camera back and forth And drive the tested lead screw nut slider to move along the tested lead screw. At the same time, when the tested lead screw drive mechanism drives the tested lead screw to rotate, the straightness change of the tested lead screw will cause the tested lead screw to change. The screw nut slider jumps up and down and/or shifts back and forth, so that it is captured by the CCD camera of the tested lead screw jumping up and down and the CCD camera of the tested lead screw shifting back and forth, and the captured information is transmitted to the computer processing system to calculate the The straightness data of the lead screw can be measured, so it can reflect a good automatic detection effect, which can not only improve the detection efficiency, but also save valuable labor resources; The measured lead screw nut slide block centralizing mechanism moves on the measured lead screw, so the straightness change of the measured lead screw will not interfere with the normal movement of the moving frame driven by the left and right displacement drive mechanism of the moving frame. Third, because the straightness data of the recovered lead screw can be obtained, it can provide a reference basis for the applicability of the recovered lead screw for equipment with different transmission accuracy requirements and save resources.

Description of drawings

FIG. 1 is a structural diagram of an embodiment of the present invention.

Detailed ways

In order to be able to understand the technical essence and beneficial effects of the present invention more clearly, the applicant will describe in detail below by way of examples, but the description of the examples is not intended to limit the solution of the present invention. Equivalent transformations that are only formal but not substantial should be regarded as the scope of the technical solutions of the present invention.

In the following description, all concepts related to the directionality or orientation of up, down, left, right, front and rear are for the position state of FIG. The special limitation of the technical solution.

Referring to FIG. 1, a detection platform 1 is shown. On the upward side of the detection platform 1, a front rail 11 of the mobile frame is fixed by fixing screws 111 of the front rail of the mobile frame, and a mobile frame is fixed by fixing screws 121 of the rear rail of the mobile frame. The rear rail 12 of the rack is provided, and a left support seat 13 of the screw under test is provided (that is, fixed by screws) at a position corresponding to the position between the front rail 11 of the mobile rack and the left end of the rear rail 12 of the mobile rack. The position between the front guide rail 11 of the frame and the right end of the rear guide rail 12 of the moving frame is provided with (that is, fixed by screws) a right support seat 14 of the tested lead screw. Correspondingly, in which, on the detection platform 1 and at a position corresponding to the left ends of the front and rear guide rails 11 and 12 of the moving frame, in a state parallel to the longitudinal direction of the detection platform 1, a fixed screw 161 to adjust the guide rail is fixed to a measured The adjusting guide rail 16 for the left support seat of the lead screw is provided with a trapezoidal bolt groove 17 at the position corresponding to the front side and the rear side of the adjusting guide rail 16 of the left support seat of the tested lead screw in the longitudinal direction. The center position of the bottom of the support seat 13 is slidingly matched with the adjustment guide rail 16 of the left support seat of the tested lead screw, and the front and rear ends of the left support seat 13 of the tested lead screw are fixed to the detection platform 1 at the positions corresponding to the trapezoidal bolt grooves 17; A moving frame 2 is shown, the lower part of the front side of the moving frame 2 is slidably matched with the aforementioned front rail 11 of the moving frame, and the lower part of the rear side of the moving frame 2 is slidably matched with the aforementioned rear rail 12 of the moving frame, and the moving frame The right side of 2 is fixed with a lifting table guide rail I21 and a lifting table guide rail II 22 in a longitudinal state through the guide rail fixing screws. The lifting table guide rail I21 and the lifting table guide rail II22 are parallel to each other in front and back; a moving frame left and right displacement drive mechanism 3 is shown. The left and right displacement driving mechanism 3 of the moving frame is arranged on the aforementioned detection platform 1 at a position corresponding to the rear side of the rear guide rail 12 of the aforementioned moving frame, and the lower part of the rear side of the aforementioned moving frame 2 is connected with the left and right displacement driving mechanism 3 of the moving frame ; shows a measured screw drive mechanism 4, the measured screw drive mechanism 4 is set on the aforementioned detection platform 1 at a position corresponding to the right side of the aforementioned tested screw right support base 14; shows A tested lead screw nut slider 5, the tested lead screw nut slider 5 is slidably sleeved on the tested lead screw 10 in the use state; a block for avoiding the aforementioned tested lead screw nut slider is shown 5. The righting mechanism 6 of the tested lead screw nut slide block 6 is tilted (lodged), and the tested lead screw nut slide block centralizing mechanism 6 is in a state of attracting with the upper part of the tested lead screw nut slide block 5 and the aforementioned The lifting table guide rail I21 and the lifting table guide rail II22 are slidably matched; a lifting table lifting driving mechanism 7 is shown, and the lifting table lifting driving mechanism 7 is set at a position corresponding to the upper position of the above-mentioned tested lead screw nut slider centralizing mechanism 6 . The right side of the aforesaid moving frame 2 is also connected to the centralizing mechanism 6 of the tested lead screw nut slider; shows a tested lead screw jumping up and down CCD camera 8, and the tested lead screw jumping up and down CCD camera 8 is corresponding to the aforementioned The front of the tested lead screw 10 The position of the side is set at the lower part of the front side of the moving frame 2 at the position corresponding to the front side of the tested lead screw nut slider 5; it shows that a tested lead screw is offset back and forth by the CCD camera 9. The CCD camera 9 with a front-to-back offset of the lead screw is disposed on the above-mentioned measured lead screw nut slider centralizing mechanism 6 at a position corresponding to the upper part of the above-mentioned measured lead screw 10 . The up-and-down CCD camera 8 captures the image of the tested lead screw 10 jumping up and down, and the CCD camera 9 captures the image of the measured lead screw 10 beating (ie, the front and rear offset), so that The accuracy of the measured lead screw 10, that is, the straightness data, can reach a satisfactory level.

As shown in FIG. 1 , a support base guide chute 132 is formed at the center position of the bottom of the left support base 13 of the tested lead screw. The support base guide chute 132 slides with the aforementioned left support base adjustment guide rail 16 of the tested screw In cooperation, the front and rear ends of the left support base 13 of the tested lead screw are respectively fixed to the detection platform 1 by a trapezoidal bolt 133 at the position corresponding to the trapezoidal bolt groove 17, and the upper end of the trapezoidal bolt 133 extends to the left support base of the tested lead screw. 13 is also provided with a trapezoidal bolt nut 1331. Due to the difference in length of the recovered lead screw 10 under test, it can be adapted by changing the position of the left support seat 13 of the tested lead screw on the adjustment guide rail 16 of the left support seat of the tested lead screw.

As shown in FIG. 1 , the aforementioned detection platform 1 is supported on the floor of the detection workplace by the detection platform support legs 15 , and a detection platform level adjustment screw 151 is provided at the bottom of the detection platform support legs 15 .

A left support groove 131 of the tested lead screw is formed on the upward side of the left support seat 13 of the tested lead screw, and a right support groove of the tested lead screw is formed on the upward side of the tested lead screw right support seat 14 141. In this embodiment, the upper part of the left support groove 131 of the tested lead screw and the right support groove 141 of the tested lead screw are open, that is to say, the upper part is not closed, and the left support groove 131 of the tested lead screw and the measured right support groove 141 are open. The shape of the right support groove 141 of the lead screw is a V-shape, but a semicircle or a U-shape may also be used.

Continuing with FIG. 1 , a front sliding guide shoe 23 is fixed to the lower part of the front side of the aforementioned moving frame 2 by the screws 232 of the front sliding guide shoe of the moving frame. The shoe guide block screw 2311 is fixed with a pair of front sliding guide shoe guide blocks 231 of the moving frame. A rear sliding guide shoe 24 of the moving frame is fixed to the lower part of the side by the screws 243 of the rear sliding guide shoe of the moving frame. Sliding guide shoe guide blocks 241, the pair of rear sliding guide shoe guide blocks 241 of the moving frame are slidably matched with the aforementioned rear guide rail 12 of the moving frame, wherein the lower part of the rear side of the aforementioned moving frame rear sliding guide shoe 24 is arranged on the aforementioned moving frame. The aforementioned moving frame left and right displacement driving mechanism 3 on the detection platform 1 is connected; the aforementioned CCD camera 8 for the up-and-down movement of the tested lead screw is arranged or fixed on the front sliding guide shoe 23 of the moving frame.

Continuing with FIG. 1 , the aforementioned moving frame left and right displacement drive 3 includes a moving frame left and right displacement drive motor 31, a moving frame left and right displacement drive screw 32 and a moving frame left and right displacement drive nut 33. The moving frame left and right displacement drive motor 31 is corresponding to The position of the rear right end of the rear guide rail 12 of the moving frame is fixed on the detection platform 1 through the left and right displacement driving motor base 311 of the moving frame. The rear guide rails 12 of the moving frame are parallel, the left end of the left and right displacement driving screw 32 of the moving frame is rotatably supported on the first bearing seat I321 of the left and right displacement driving screw of the moving frame, and the right end of the left and right displacement driving screw 32 of the moving frame is rotatably supported on the moving frame The left and right displacement drive screw second bearing seat II 322 is extended to the right side of the left and right displacement drive screw second bearing seat II 322 of the moving frame, and the left and right displacement drive motor 31 of the moving frame is drivingly connected. The driving screw 32 is threadedly matched, and the first bearing seat I321 of the moving frame left and right displacement driving screw and the second bearing seat II 322 of the moving frame left and right displacement driving screw are fixed with the aforementioned detection platform 1. The aforementioned moving frame left and right displacement drive motor 31 has a positive For the motor with reversing function, a drive nut connecting plate 242 is connected to the rear sliding guide shoe 24 of the moving frame.

The aforementioned tested screw drive mechanism 4 includes a tested screw drive motor 41 and a universal joint 42. The tested screw drive motor 41 is located on the right side corresponding to the aforementioned tested screw right support base 14. The position is fixed on the aforementioned detection platform 1 through the tested lead screw drive motor base 411, and the right end of the universal joint 42 is coupled with the tested lead screw drive motor shaft of the tested lead screw drive motor 41 through the hinge pin 421. The joint 412 is hinged, and the right end of the screw under test 10 is temporarily connected to the left end of the universal joint 42 in the detection state and locked by the screw under test locking screw 422 arranged at the left end of the universal joint 42 .

The aforesaid lead screw nut slider centralizing mechanism 6 includes a lifting table 61, a magnet fixing seat 62 and a magnet 63. The front end of the lifting table 61 is facing the side (ie the left side) of the moving frame 2 before passing through the lifting table. The slider I611 is slidingly matched with the aforementioned lifting platform guide rail I21, and the rear end of the lifting platform 61 also faces the one side (ie the left side) of the aforementioned moving frame 2 through the lifting platform rear slider II612 and the aforementioned lifting platform guide rail II22. The magnet fixing seat 62 corresponds to the right side of the lifting table 61 , the upper end of the magnet fixing seat 62 is fixed with the middle part of the right side of the lifting table 61 by the magnet fixing seat screw 621 , and the lower end faces the aforesaid tested lead screw nut slider 5 . The magnet 63 is fixed on the lower end of the magnet fixing seat 62 by the magnet fixing screw 631 and magnetically attracts the upward side of the tested lead screw nut slider 5 made of magnetically conductive material. The mechanism 7 is drivingly connected to the lifting table 61 at a position corresponding to the upper part of the lifting table 61 ;

As shown in FIG. 1 , the aforementioned front slider I611 of the lifting platform is fixed to the lifting platform 61 by the fixing screws 6111 of the lifting platform front slider. Similarly, the aforementioned rear slider II 612 of the lifting platform is fixed by the fixing screws 6121 of the rear lifting platform and the lifting platform. The stage 61 is fixed.

Continuing to see FIG. 1 , a lifting table nut seat 613 is formed in the middle of the aforementioned lifting table 61 and corresponding to the position between the aforementioned lifting table front slider I 611 and the lifting table rear slider II 612 , and inside the lifting table nut seat 613 A lift table driving screw is provided with a nut 6131 .

The aforementioned lifting platform lifting drive mechanism 7 includes a driving motor fixing seat 71, a lifting platform driving motor 72 and a lifting platform driving screw 73. The driving motor fixing seat 71 is corresponding to the upper end of the lifting platform guide rail I21 and the lifting platform guide rail II22. The position is fixed with the right side of the aforementioned moving frame 2, the lift table drive motor 72 is fixed to the drive motor fixing seat 71 by the lift table drive motor fixing screw 721, and the lift table drive motor shaft of the lift table drive motor 72 faces downward, and the lift table drives The upper end of the screw 73 is drivingly connected with the aforementioned lift table drive motor shaft, and the lower end of the lift table drive screw 73 is driven and matched with the aforementioned lift table drive screw with a nut 6131. The aforementioned lift table drive motor 72 is a motor with a forward and reverse function. .

The function of the aforementioned lifting platform lifting driving mechanism 7 is to ensure that the magnet 63 properly attracts the tested lead screw nut slider 5 . Specifically, when the lift table drive motor 72 works, it drives the lift table drive screw 73 to rotate. Since the lift table drive screw 73 is threaded with the aforementioned lift table drive screw fitting nut 6131 (ie, drive fit), the lift table is driven by the lift table drive screw 73. The driving screw 73 moves the lifting table 61 downward through the lifting table driving screw and the nut 6131, and drives the magnet holder 62 to move downward accordingly. When the seat 62 and the magnet 63 go down, the magnet 63 can be in a state of good magnetic attraction to the tested lead screw nut slider 5. On the contrary, when the lift table driving motor 72 works in the opposite direction relative to the aforementioned working direction, then According to the reverse process described above, the magnet 63 is displaced upward to ensure that the magnet 63 is in a state of good magnetic attraction with the tested lead screw nut slider 5 . It can be seen from this that no matter whether the magnet 63 is displaced upward or downward, the magnetic attraction state of the magnet 63 to the tested lead screw nut slider 5 should be ensured during the detection and debugging process.

It can be seen from the above description: if there is no magnet 63, then the tested lead screw 10 cannot be guaranteed to be tested when the tested lead screw drive motor 41 of the tested lead screw drive mechanism 4 is driven by the universal joint 42 to rotate. The lead screw nut slider 5 does not rotate with the tested lead screw 10, and often rotates for a while and stops for a while. Therefore, it is precisely because of the magnetic attraction of the magnet 63 to the tested lead screw nut slider 5 that it can be ensured that the tested lead screw nut slider 5 does not rotate when the tested lead screw 10 rotates, but can only move along the tested lead screw. 10 moves. During the rotation of the tested lead screw 10, the up-and-down jump of the tested lead screw 10 and the change of the straightness of the front-to-back offset are captured by the CCD camera 8 of the tested lead-screw’s up-and-down jump and the tested lead screw’s front-to-back offset CCD camera 9 Then, it is transmitted to the computer processing system, and the runout error of the recovered lead screw 10 is obtained through analysis.

When testing the recovered lead screw, that is, the tested lead screw 10 that has been repeatedly mentioned above, firstly insert the tested lead screw 10 on the tested lead screw nut slider 5, that is, the tested lead screw nut slider 5. Slip on the tested lead screw 10, and then support the lead screw head at the left end of the tested lead screw 10 in the tested lead screw left support groove 131 of the tested lead screw left support base The screw head at the right end of the screw 10 is supported in the right bearing groove 141 of the screw under test in the right support base 14 of the screw under test and is connected with the aforementioned universal joint 42. The locking screw 422 establishes a transmission connection between the screw head at the right end of the screw 10 under test and the drive motor 41 of the screw under test through the universal joint 42, and then lifts the drive mechanism 7 through the lifting platform as described by the applicant above. The magnet 63 is in a state of good magnetic attraction (sucking) to the tested lead screw nut slider 5 . Then, the moving frame left and right displacement drive motor 31 of the structural system of the moving frame left and right displacement drive mechanism 3 and the tested lead screw drive motor 41 of the structural system of the tested lead screw drive mechanism 4 are made to work at the same time, and the left and right displacement of the moving frame drives the motor. 31 drives the left and right displacement driving screw 32 of the moving frame, the left and right displacement driving screw 32 of the moving frame drives the left and right displacement driving nut 33 of the moving frame, and the left and right displacement driving nut 33 of the moving frame drives the rear sliding guide shoe 24 of the moving frame through the driving nut connecting plate 242, When the rear sliding guide shoe 24 of the moving frame moves from right to left along the rear rail 12 of the moving frame, the front sliding guide shoe 23 of the moving frame is driven by the moving frame 2 to move from right to left along the front rail 11 of the moving frame. During this process, since the moving frame 2 is in a state of moving from right to left, the magnet 63 drives the measured lead screw nut slider 5 that is attracted by it to move from right to left along the measured lead screw 10. In this process, the up-and-down jump of the tested lead screw nut slider 5 caused by the change of the straightness of the tested lead screw 10 and the forward and backward deviation are caused by the up and down jump of the tested lead screw CCD camera 8 and the backward and forward deviation of the tested lead screw. The CCD camera 9 captures and feeds back to the aforementioned computer processing system that is electrically connected to the CCD camera 8 for the up and down movement of the tested lead screw and the CCD camera 9 that is electrically connected to the tested lead screw 9. After analyzing whether the tested lead screw 10 is suitable to continue to serve in other The equipment that requires relatively low transmission accuracy.

After the detection is completed, the tested lead screw 10 that has been tested is removed and numbered and stored according to the reverse process described above, and the next tested lead screw 10 to be tested is tested in the same manner as described above. The process of removing the tested lead screw 10 that has completed the detection is to first loosen the tested lead screw locking screw 422 to separate the tested lead screw 10 from the universal joint 42 , and vice versa.

To sum up, the technical solution provided by the present invention makes up for the shortcomings in the prior art, successfully completes the invention task, and faithfully realizes the technical effect stated in the above technical effect column by the applicant.

Claims (9)

1. A reclaiming lead screw precision detection device is characterized in that it comprises a detection platform (1), and a front guide rail (11) of a moving frame and a rear guide rail (11) of a moving frame are fixed on the upper side of the detection platform (1). 12), and a left support seat (13) of the screw under test is arranged at the position corresponding to the left end of the front rail (11) of the mobile frame and the rear rail (12) of the mobile frame, and a left support seat (13) of the screw under test is arranged at the position corresponding to the front rail (11) of the mobile frame. 11) A position between the right end of the rear guide rail (12) of the moving frame is provided with a right support seat (14) of the tested lead screw, and the left and right support seats (13, 14) of the tested lead screw correspond to each other left and right, wherein, On the detection platform (1) and at a position corresponding to the left ends of the front and rear guide rails (11, 12) of the moving frame, a left support for the lead screw under test is fixed in a state parallel to the longitudinal direction of the detection platform (1). seat adjustment guide rail (16), and a trapezoidal bolt groove (17) is provided at the position corresponding to the front side and the rear side of the length direction of the left support seat adjustment guide rail (16) of the tested lead screw. The bottom center position of the left support seat (13) of the lead screw is slidingly matched with the adjustment guide rail (16) of the left support seat of the tested lead screw, and the front and rear ends of the left support seat (13) of the tested lead screw are corresponding to the trapezoidal bolt grooves. The position of (17) is fixed with the detection platform (1); a moving frame (2), the lower part of the front side of the moving frame (2) is slidingly matched with the front guide rail (11) of the moving frame, and the moving frame (2) The lower part of the rear side of the movable frame is slidably matched with the rear guide rail (12) of the moving frame, and a lifting platform guide rail I (21) and a lifting platform guide rail II (22) are fixed on the right side of the moving frame (2) in a longitudinal state. The lifting platform guide rail I (21) and the lifting platform guide rail II (22) are parallel to each other; a moving frame left and right displacement driving mechanism (3), the moving frame left and right displacement driving mechanism (3) is corresponding to the rear guide rail of the moving frame The position of the rear side of (12) is set on the detection platform (1), and the lower part of the rear side of the moving frame (2) is connected with the left and right displacement driving mechanism (3) of the moving frame; Mechanism (4), the tested lead screw drive mechanism (4) is arranged on the test platform (1) at a position corresponding to the right side of the tested lead screw right support seat (14); A lead screw nut slider (5), the tested lead screw nut slider (5) is slidably sleeved on the tested lead screw (10) in a use state; one is used to prevent the tested lead screw nut from sliding The righting mechanism (6) of the tested lead screw nut slide block (5) is inclined, and the tested lead screw nut slide block centralizing mechanism (6) magnetically engages with the upper part of the tested lead screw nut slide block (5). It is slidingly matched with the lifting platform guide rail I (21) and the lifting platform guide rail II (22) in the state of The upper position of the measuring lead screw nut sliding block centralizing mechanism (6) is arranged on the right side of the moving frame (2) and is in driving connection with the measured lead screw nut sliding block centralizing mechanism (6); beating CCD camera (8), the measured The lead screw up-and-down CCD camera (8) is arranged at the lower part of the front side of the moving frame (2) at a position corresponding to the front side of the lead screw (10) to be tested; a lead screw to be tested offsets the CCD camera back and forth (9), the CCD camera (9) with front and rear offset of the tested lead screw is arranged on the tested lead screw nut slider centralizing mechanism (6) at a position corresponding to the upper part of the tested lead screw (10). . 2. The device for detecting the accuracy of the recovered lead screw according to claim 1, characterized in that a left support groove (131) for the lead screw to be measured is formed on the upward side of the left support seat (13) of the lead screw to be measured, A right support groove (141) of the tested lead screw is formed on the upward side of the tested lead screw right support base (14), the tested lead screw left support groove (131) and the tested lead screw right support The upper part of the groove (141) is opened. 3. The device for detecting the accuracy of the recovered lead screw according to claim 2, characterized in that the shape of the left support groove (131) of the tested lead screw and the right support groove (141) of the tested lead screw is a V-shape, a semicircle shape or U shape. 4. The detection device for the accuracy of the recovered lead screw according to claim 1, characterized in that a front sliding guide shoe (23) of the moving frame is fixed on the lower part of the front side of the moving frame (2), and a sliding guide shoe (23) is fixed in front of the moving frame. A pair of front sliding guide shoe guide blocks (231) of the moving frame are fixed at the bottom of the shoe (23), and the pair of front sliding guide shoe guide blocks (231) of the moving frame are slidably matched with the front guide rail (11) of the moving frame; A moving frame rear sliding guide shoe (24) is fixed at the lower part of the rear side of the moving frame (2), and a pair of moving frame rear sliding guide shoe guide blocks (24) are fixed at the bottom of the moving frame rear sliding guide shoe (24). 241), the pair of rear sliding guide shoe guide blocks (241) of the moving frame are slidably matched with the rear guide rail (12) of the moving frame, wherein the lower part of the rear side of the rear sliding guide shoe (24) of the moving frame The left and right displacement drive mechanism (3) of the moving frame arranged on the detection platform (1) is connected; the CCD camera (8) of the tested lead screw jumping up and down is arranged on the sliding guide shoe (23) in front of the moving frame )superior. 5. The recovery screw accuracy detection device according to claim 4, characterized in that the moving frame left and right displacement drive (3) comprises a moving frame left and right displacement drive motor (31), a moving frame left and right displacement drive screw (3). 32) and a left and right displacement driving nut (33) of the moving frame, and the moving frame left and right displacement driving motor (31) drives the motor base ( 311) is fixed on the detection platform (1), the left and right displacement driving screws (32) of the moving frame correspond to the rear side of the rear guide rail (12) of the moving frame and are parallel to the rear guide rail (12) of the moving frame. The left end of the displacement driving screw (32) is rotatably supported on the first bearing seat I (321) of the left and right displacement driving screw of the moving frame, and the right end of the left and right displacement driving screw (32) of the moving frame is rotatably supported on the left and right displacement driving screw of the moving frame The second bearing seat II (322) is extended to the right side of the left and right displacement drive screw of the moving frame. The second bearing seat II (322) is connected with the moving frame left and right displacement drive motor (31), and the left and right displacement of the moving frame drives the nut (33). ) is threadedly matched with the left and right displacement driving screw (32) of the moving frame, the first bearing seat I (321) of the left and right displacement driving screw of the moving frame and the second bearing seat II (322) of the left and right displacement driving screw of the moving frame and the detection The platform (1) is fixed, the left and right displacement drive motor (31) of the moving frame is a motor with forward and reverse function, and a drive nut connecting plate is connected to the lower part of the rear side of the rear sliding guide shoe (24) of the moving frame (242), the drive nut connecting plate (242) is connected with the front side of the left and right displacement drive nut (33) of the moving frame through the drive nut connecting plate fixing screw (2421). 6. The recovery screw accuracy detection device according to claim 1, characterized in that the tested screw drive mechanism (4) comprises a tested screw drive motor (41) and a universal coupling ( 42), the tested lead screw drive motor (41) is fixed on the testing platform through the tested lead screw drive motor mount (411) at a position corresponding to the right side of the tested lead screw right support base (14). (1), the right end of the universal joint (42) is hinged with the tested screw drive motor shaft coupling (412) of the tested screw drive motor (41), and the tested screw (10) The right end of the joint is temporarily connected with the left end of the universal joint (42) in the detection state. 7. The device for detecting the accuracy of the recovered lead screw according to claim 1, characterized in that the measured lead screw nut slider centralizing mechanism (6) comprises a lifting platform (61), a magnet fixing seat (62) and a The magnet (63), the front end of the lift table (61) and the side facing the moving frame (2) are slidingly matched with the lift table guide rail I (21) through the lift table front slider I (611), and the lift table The rear end of (61) and the side facing the moving frame (2) are slidingly matched with the lifting platform guide rail II (22) through the lifting platform rear slider II (612), and the magnet fixing seat (62) corresponds to On the right side of the lifting table (61), the upper end of the magnet fixing seat (62) is fixed with the middle part of the right side of the lifting table (61), and the lower end extends toward the direction of the tested lead screw nut slider (5), The magnet (63) is fixed on the lower end of the magnet fixing seat (62) and magnetically attracts with the tested lead screw nut slider (5). The upper position of ) is connected with the lifting platform (61) by transmission; the CCD camera (9) with front and rear deviation of the tested lead screw is fixed on the right middle part of the magnet holder (62). 8. The detection device for the precision of the recovered lead screw according to claim 7, characterized in that it is located in the middle of the lifting platform (61) and corresponding to the front sliding block I (611) of the lifting platform and the rear sliding block of the lifting platform. The position between II (612) constitutes a lifting table nut seat (613), and a lifting table driving screw screw matching nut (6131) is arranged in the lifting table nut seat (613); the lifting table lifting driving mechanism (7) ) comprises a driving motor fixing seat (71), a lifting table driving motor (72) and a lifting table driving screw (73), and the driving motor fixing seat (71) is corresponding to the lifting table guide rail I (21) and the lifting table guide rail II The position between the upper ends of (22) is fixed with the right side of the moving frame (2), the lift table drive motor (72) is fixed with the drive motor fixing seat (71), and the lift table drive motor (72) lifts the table The drive motor shaft faces downward, the upper end of the lift table drive screw (73) is drivingly connected with the lift table drive motor shaft, and the lower end of the lift table drive screw (73) is driven with the lift table drive screw with a nut (6131) for transmission Cooperate. 9 . The detection device for the precision of the recovered lead screw according to claim 8 , wherein the lift table driving motor ( 72 ) is a motor with a forward and reverse rotation function. 10 .

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