Detection device integrating length detection and straightness detection of rod piece

Abstract

The utility model discloses a detection device integrating rod piece length and straightness detection, which relates to the technical field of rod piece length and straightness measurement and comprises a machine table and a marble block fixedly arranged on the top surface of the machine table, and a measuring unit is arranged on the top surface of the marble block. The top surface of the filler strip is fixedly provided with a plurality of pressing air cylinders which are opposite to the stop blocks in the front-back direction; contact type sensors B are fixedly arranged on the top surfaces of the two contact type sensors A, and detection rods of the two contact type sensors B are oppositely arranged left and right; a transverse lead screw nut pair fixedly arranged on the bottom plate is arranged on the rear side of the filler strip, a vertical lead screw nut pair is fixedly arranged on the top surface of the moving plate, a sliding plate is fixedly arranged on the front end face of a moving part of the vertical lead screw nut pair, and a laser sensor is arranged on the front end face of the sliding plate. The utility model has the beneficial effects that the working intensity of workers is greatly reduced, and the rod piece detection efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring the length and straightness of a rod, in particular to a detection device integrating the detection of the length and straightness of a rod. Background Art

[0002] The structure of the rod 1 produced in a workshop is as follows Figure 1-2 As shown, it comprises a long bar 2 with a rectangular cross section, short round bars 3 are fixed on the left and right end faces of the long bar 2, and a step surface 4 is formed between the short round bars 3 and the long bar 2. After a batch of rods 1 are produced and formed, the process requires the length and straightness of each rod 1 to be detected, wherein the length includes the distance X between the outer end faces of the two short round bars 3. a , the distance between the two step surfaces 4 is X b , to determine whether the rod 1 being tested is qualified.

[0003] The method for testing the length and straightness of rod 1 in a workshop is:

[0004] S1. A worker takes out a rod 1 and places the rod 1 flat on the surface of the testing table;

[0005] S2. The worker uses a ruler to measure the distance X between the outer end faces of the two short round rods 3 of the rod 1. a , and then use a ruler to measure the distance X between the two step surfaces 4 of the rod 1 b , thereby completing the measurement of the length of the rod 1;

[0006] S3, the worker rotates the rod 1 to the inspection station of the straightness inspection equipment, and the straightness of the rod 1 is inspected by the straightness inspection equipment, thereby completing the measurement of the straightness of the rod 1;

[0007] S4. The worker determines the X of the tested rod 1. a , X b and whether the straightness value is within the standard range. If X a , X b If the X and straightness are within the standard range, the rod 1 is judged to be qualified, and the worker puts the qualified product into the finished product basket; a or X b Or if the straightness is not within the standard range, the rod 1 being tested is judged as unqualified, and the worker directly removes the unqualified product;

[0008] S5. Repeat steps S1 to S4 to continuously detect the length and straightness of multiple rods 1.

[0009] However, although this method can detect the length and straightness of multiple rods 1, it still has the following technical defects:

[0010] I. Workers need to perform two operations to measure the X of rod 1 respectively. a and X b This undoubtedly increases the work intensity of the workers, and also increases the length measurement time of a single rod 1, thereby reducing the measurement efficiency of the length of the rod 1, and further reducing the detection efficiency of subsequent rods 1.

[0011] II. In step S3, after the length measurement of the rod 1 is completed, the worker needs to transfer the rod 1 to the inspection station of the straightness inspection equipment. The intermediate turnover time undoubtedly increases the measurement time of the straightness of a single rod 1, thereby reducing the measurement efficiency of the straightness of the rod 1, and further reducing the inspection efficiency of subsequent rods 1.

[0012] Therefore, there is an urgent need for a detection device that can greatly reduce the workload of workers and greatly improve the efficiency of rod detection. Utility Model Content

[0013] The utility model aims to overcome the shortcomings of the prior art and provide a detection device which integrates rod length and straightness detection, greatly reduces the work intensity of workers and greatly improves the efficiency of rod detection.

[0014] The purpose of the utility model is achieved through the following technical solutions: a detection device integrating rod length and straightness detection, which includes a machine platform, a marble block fixed on the top surface of the machine platform, a measuring unit is arranged on the top surface of the marble block, and the measuring unit includes a bottom plate fixed on the top surface of the marble block, a pad fixed on the top surface of the bottom plate and arranged along its length direction, a plurality of stoppers are fixed on the top surface of the pad at intervals along its length direction, a plurality of pressing cylinders are fixed on the top surface of the pad, and are respectively opposite to the stoppers in front and back, a pressure head is fixed on the piston rod of the pressure cylinder, and the pressure head is opposite to the stopper in front and back;

[0015] Vertical plates are fixedly provided on the top surface of the cushion strip and at the left and right ends thereof, and contact sensors A are fixedly provided on the outer end surfaces of the two vertical plates, and the detection heads of the two contact sensors A penetrate the corresponding vertical plates, and the detection heads of the two contact sensors A are arranged opposite to each other on the left and right sides, and contact sensors B are fixedly provided on the top surfaces of the two contact sensors A, and the detection rods of the two contact sensors B are arranged opposite to each other on the left and right sides;

[0016] A transverse screw nut pair fixed on the bottom plate is arranged on the rear side of the pad strip, a moving plate is fixed on the top surface of the moving part of the transverse screw nut pair, a vertical screw nut pair is fixed on the top surface of the moving plate, a sliding plate is fixed on the front end surface of the moving part of the vertical screw nut pair, and a laser sensor is arranged on the front end surface of the sliding plate.

[0017] Support columns are fixedly arranged on the top surface of the machine platform and at four corners thereof, and the marble blocks are fixedly arranged on the top surfaces of the four support columns.

[0018] The pressure head is a high-density polyethylene pressure head.

[0019] Two stoppers are fixedly arranged on the top surface of the cushion strip, two connecting frames respectively corresponding to the stoppers are fixedly arranged on the front end surface of the cushion strip, and a clamping cylinder is fixedly arranged on the top surfaces of the two connecting frames.

[0020] The cushion strip is provided with two through slots penetrating the front and rear end surfaces thereof, and the two through slots are respectively located at the outer sides of the two stoppers.

[0021] The transverse screw nut pair is arranged parallel to the pad strip.

[0022] An L plate is fixedly arranged on the front end surface of the sliding plate, and the laser sensor is fixedly arranged on the left end surface of the L plate.

[0023] The front side of the machine is also provided with a shelf assembly for placing rods. The shelf assembly is arranged on the front side of the machine. The shelf assembly includes a shelf rack, and a plurality of longitudinally arranged shelf bars are fixedly arranged on the top surface of the shelf rack. A plurality of grooves are provided on the top surface of each shelf bar at intervals along its length direction. A robot arm for grabbing the rods is arranged on the right side of the shelf assembly.

[0024] The detection device also includes a controller, which is electrically connected to the transverse screw nut pair, the vertical screw nut pair, the clamping cylinder, the contact sensor A and the contact sensor B via a signal line.

[0025] The utility model has the following advantages: greatly reducing the work intensity of workers and greatly improving the efficiency of rod detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the structure of the rod;

[0027] Figure 2 for Figure 1 The main view of

[0028] Figure 3 It is a schematic diagram of the structure of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the measurement unit;

[0030] Figure 5 for Figure 4 A partial enlarged view of part A;

[0031] Figure 6 It is the main view of the measuring unit;

[0032] Figure 7 for Figure 6 A partial enlarged view of part B;

[0033] Figure 8 It is a schematic diagram of the connection between the vertical screw nut pair and the laser sensor;

[0034] Fig. 9 It is a schematic diagram of the connection between the bottom plate, the pad and the stopper;

[0035] Fig.10 is a schematic diagram of the structure of the shelving component;

[0036] Fig.11 is a schematic diagram of the structure of the shelf bar;

[0037] Fig.12 A schematic diagram for realizing pre-installation of multiple rods to be inspected;

[0038] Fig.13 Schematic diagram for loading the first rod;

[0039] Fig.14 for Fig.13 A partial enlarged view of the C part;

[0040] Fig.15 for Fig.13 The main view;

[0041] Fig.16 for Fig.15 A partial enlarged view of the D part;

[0042] In the figure:

[0043] 1-rod, 2-long bar, 3-short round bar, 4-step surface;

[0044] 5-machine table, 6-marble block, 7-measuring unit, 8-bottom plate, 9-pad, 10-stopper, 11-pressing cylinder, 12-pressing head, 13-vertical plate, 14-contact sensor A, 15-detection head, 16-contact sensor B, 17-detection rod;

[0045] 18-transverse screw nut pair, 19-moving plate, 20-vertical screw nut pair, 21-sliding plate, 22-laser sensor;

[0046] 23-connecting frame, 24-through slot, 25-L plate, 26-shelf assembly, 27-shelf frame, 28-shelf bar, 29-groove. DETAILED DESCRIPTION

[0047] The utility model is further described below in conjunction with the accompanying drawings, and the protection scope of the utility model is not limited to the following:

[0048] like Figure 3 to Figure 11 As shown, a detection device integrating rod length and straightness detection is provided, which comprises a machine table 5, a marble block 6 fixed on the top surface of the machine table 5, a measuring unit 7 is arranged on the top surface of the marble block 6, and the measuring unit 7 comprises a bottom plate 8 fixed on the top surface of the marble block 6, a pad strip 9 fixed on the top surface of the bottom plate 8 and arranged along its length direction, a plurality of stoppers 10 are fixed on the top surface of the pad strip 9 at intervals along its length direction, a plurality of clamping cylinders 11 are fixed on the top surface of the pad strip 9, which are respectively opposed to the stoppers 10 in front and back, a pressure head 12 is fixed on the piston rod of the clamping cylinder 11, and the pressure head 12 is a high-density polyethylene pressure head, which is opposed to the stoppers 10 in front and back; support columns are fixed on the top surface of the machine table 5 and located at its four corners, and the marble block 6 is fixed on the top surfaces of the four support columns.

[0049] A vertical plate 13 is fixedly provided on the top surface of the pad strip 9 and at its left and right ends, a contact sensor A14 is fixedly provided on the outer end surfaces of the two vertical plates 13, the detection heads 15 of the two contact sensors A14 penetrate the corresponding vertical plates 13, the detection heads 15 of the two contact sensors A14 are arranged opposite to each other on the left and right, a contact sensor B16 is fixedly provided on the top surfaces of the two contact sensors A14, and the detection rods 17 of the two contact sensors B16 are arranged opposite to each other on the left and right; a transverse screw nut pair 18 fixedly provided on the bottom plate 8 is provided on the rear side of the pad strip 9, the transverse screw nut pair 18 is arranged parallel to the pad strip 9, a moving plate 19 is fixedly provided on the top surface of the moving part of the transverse screw nut pair 18, a vertical screw nut pair 20 is fixedly provided on the top surface of the moving plate 19, a sliding plate 21 is fixedly provided on the front end surface of the moving part of the vertical screw nut pair 20, and a laser sensor 22 is provided on the front end surface of the sliding plate 21. An L-plate 25 is fixedly disposed on the front end surface of the sliding plate 21 , and the laser sensor 22 is fixedly disposed on the left end surface of the L-plate 25 .

[0050] Two stoppers 10 are fixedly arranged on the top surface of the gasket strip 9, two connecting frames 23 corresponding to the stoppers 10 are fixedly arranged on the front end surface of the gasket strip 9, and a clamping cylinder 11 is fixedly arranged on the top surface of the two connecting frames 23. Two through slots 24 penetrating the front and rear end surfaces of the gasket strip 9 are provided, and the two through slots 24 are respectively located on the outside of the two stoppers 10.

[0051] The front side of the machine 5 is also provided with a shelf assembly 26 for placing the rod 1. The shelf assembly 26 is arranged on the front side of the machine 5. The shelf assembly 26 includes a shelf frame 27, and a plurality of longitudinally arranged shelf bars 28 are fixedly arranged on the top surface of the shelf frame 27. A plurality of grooves 29 are provided on the top surface of each shelf bar 28 at intervals along its length direction. A robot arm for grabbing the rod 1 is arranged on the right side of the shelf assembly 26.

[0052] The detection device also includes a controller, which is electrically connected to the transverse screw nut pair 18, the vertical screw nut pair 20, the clamping cylinder 11, the contact sensor A14 and the contact sensor B16 via a signal line. The controller can control the start or stop of the transverse screw nut pair 18, the vertical screw nut pair 20, the contact sensor A14 and the contact sensor B16, and can also control the extension or retraction of the piston rod of the clamping cylinder 11, which facilitates the operation of workers and has the characteristics of a high degree of automation.

[0053] A detection method integrating rod length and straightness detection, comprising the following steps:

[0054] S1, the worker places a Figure 1-2 The rod member 1 to be tested is shown, and the long rod 2 of the rod member 1 is ensured to be in the groove 29, so as to achieve pre-installation of multiple rod members 1 to be tested, such as Fig.12 As shown;

[0055] S2. Loading of the first rod 1: The worker controls the two clamps on the robot arm to clamp and fix the long bar 2 of the first rod 1 on the shelf assembly 26, and then controls the robot arm to move so that the clamped rod 1 moves to the top surface of the cushion strip 9, and then controls the two clamps on the robot arm to open, and the clamps release the rod 1. After releasing, the clamps of the robot arm are controlled to reset, thereby realizing the loading of the first rod 1. Figure 13 to Figure 16 As shown, at this time, the long bar 2 of the rod member 1 is just between the pressure head 12 and the stopper 10, and the two short round bars 3 of the rod member 1 are respectively opposite to the detection heads 15 of the two contact sensors A14, and at the same time, the two step surfaces 4 of the rod member 1 are respectively opposite to the detection rods 17 of the two contact sensors B16, and the rear end surface of the long bar 2 of the rod member 1 is just opposite to the front and back of the laser sensor 22;

[0056] S3. Fixing the first rod 1: Control the piston rods of the two clamping cylinders 11 to extend backward, and the piston rods drive the pressure head 12 to move backward. The pressure head 12 fixes the long rod 2 of the rod 1 between the stopper 10 and the pressure head 12, thereby fixing the first rod 1;

[0057] S4. The specific steps for measuring the length of the first rod 1 are as follows:

[0058] The piston rods of the two contact sensors A14 are controlled to extend simultaneously, and the piston rod drives the detection head 15 to move toward the short round rod 3 of the rod 1. When the detection head 15 contacts the end surface of the short round rod 3, the controller controls the corresponding contact sensor A14 to close, and the two contact sensors A14 can measure the X of the rod 1. a ;

[0059] At the same time, the piston rods of the two contact sensors B16 are controlled to extend simultaneously, and the piston rod drives the detection rod 17 to move toward the step surface 4 of the rod 1. When the detection rod 17 contacts the step surface 4, the controller controls the corresponding contact sensor B16 to close, and the two contact sensors B16 can measure the X of the rod 1. b , thus finally achieving the measurement of the length of the first rod 1;

[0060] It can be seen from step S4 that the detection device only needs to control the extension of the piston rods of the two contact sensors A14 and the two contact sensors B16 to respectively measure the X of the rod 1. a , X b Compared with the workers in the workshop using a ruler to measure the length of the rod 1, there is no need for workers to measure the length of X in two processes. a , X b It not only greatly reduces the measurement time of the length of a single rod 1, but also improves the measurement efficiency of the length of the rod 1, thereby greatly improving the detection efficiency of subsequent rods 1.

[0061] S5. The specific steps for measuring the straightness of the first rod 1 are as follows:

[0062] The horizontal screw nut pair 18 is controlled to start, and the horizontal screw nut pair 18 drives the moving part thereon to move to the left, and the moving part drives the moving plate 19 to move to the left, and the moving plate 19 drives the vertical screw nut pair 20 thereon to move to the left, and the vertical screw nut pair 20 drives the L plate 25 and the laser sensor 22 to synchronously move to the left in a straight line, and the laser sensor 22 measures the distance change between the rear end face of the long bar 2 of the rod 1 and the laser sensor 22 in real time. When the laser sensor 22 passes the left end of the long bar 2 to the left, the straightness of the rod 1 can be measured, thereby finally realizing the measurement of the straightness of the first rod 1;

[0063] S6. The worker determines the X of the tested rod 1. a , X b and whether the straightness value is within the standard range. If X a , X b If the straightness and the angle of the rod 1 are both within the standard range, the rod 1 is judged to be qualified. The worker controls the piston rods of the two clamping cylinders 11 to retract, and then controls the piston rods of the contact sensor A14 and the contact sensor B16 to retract, and finally puts the qualified product into the finished product basket; if X a or X b Or if the straightness is not within the standard range, the rod 1 being tested is judged as a defective product, and the worker controls the piston rods of the two clamping cylinders 11 to retract, and then controls the piston rods of the contact sensor A14 and the contact sensor B16 to retract, and finally removes the defective product;

[0064] S7 . Repeat steps S2 to S6 to continuously detect the length and straightness of the multiple rods 1 on the shelf assembly 26 .

[0065] Among them, it can be known from steps S4 to S5 that after the length of the rod 1 is measured, it is only necessary to control the horizontal screw nut pair 18 to start, so that the movable plate 19 on it can move linearly from right to left, thereby driving the laser sensor 22 on the vertical screw nut pair 20 to move linearly from right to left, thereby realizing the online measurement of the straightness of the rod 1. Therefore, compared with the measurement method in the workshop, the detection device does not require the worker to transfer the rod on the detection table to the detection station of the straightness detection equipment, which greatly shortens the measurement time of the straightness of the rod 1, thereby improving the measurement efficiency of the straightness of the rod 1, and further improving the subsequent detection efficiency of the rod 1.

[0066] In addition, when the model of the rod 1 to be measured changes, that is, the thickness of the rod 1 also changes accordingly, at this time, the laser sensor 22 and the rod 1 are not on the same horizontal plane. At this time, it is only necessary to control the vertical screw nut pair 20 to start, and the moving part of the vertical screw nut pair 20 drives the sliding plate 21 to move upward, the sliding plate 21 drives the L plate 25 to move upward, and the L plate 25 drives the laser sensor 22 to move upward. When the laser sensor 22 and the rod 1 are in the same horizontal plane, the vertical screw nut pair 20 is controlled to be closed. At this time, the laser sensor 22 enters the straightness detection station. Therefore, the detection device can perform straightness detection on rods 1 of different models, and has the characteristics of higher versatility.

[0067] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A detection device integrating rod length and straightness detection, characterized in that: It comprises a machine platform (5), a marble block (6) fixed on the top surface of the machine platform (5), a measuring unit (7) being arranged on the top surface of the marble block (6), the measuring unit (7) comprising a bottom plate (8) fixed on the top surface of the marble block (6), a pad (9) fixed on the top surface of the bottom plate (8) and arranged along its length direction, a plurality of stoppers (10) being fixed on the top surface of the pad (9) at intervals along its length direction, a plurality of pressing cylinders (11) being fixed on the top surface of the pad (9) and respectively opposite to the stoppers (10) in front and back, a pressure head (12) being fixed on the piston rod of the pressure cylinder (11), and the pressure head (12) being opposite to the stoppers (10) in front and back; A vertical plate (13) is fixedly provided on the top surface of the cushion strip (9) and at the left and right ends thereof, a contact sensor A (14) is fixedly provided on the outer end surfaces of the two vertical plates (13), the detection heads (15) of the two contact sensors A (14) penetrate the corresponding vertical plates (13), the detection heads (15) of the two contact sensors A (14) are arranged opposite to each other on the left and right, a contact sensor B (16) is fixedly provided on the top surface of the two contact sensors A (14), and the detection rods (17) of the two contact sensors B (16) are arranged opposite to each other on the left and right; A transverse screw nut pair (18) fixedly mounted on the bottom plate (8) is arranged on the rear side of the pad strip (9); a moving plate (19) is fixedly mounted on the top surface of the moving portion of the transverse screw nut pair (18); a vertical screw nut pair (20) is fixedly mounted on the top surface of the moving plate (19); a sliding plate (21) is fixedly mounted on the front end surface of the moving portion of the vertical screw nut pair (20); and a laser sensor (22) is arranged on the front end surface of the sliding plate (21).

2. A detection device integrating rod length and straightness detection according to claim 1, characterized in that: Support columns are fixedly arranged on the top surface of the machine platform (5) and at the four corners thereof, and the marble blocks (6) are fixedly arranged on the top surfaces of the four support columns.

3. The detection device integrating rod length and straightness detection according to claim 2, characterized in that: The pressure head (12) is a high-density polyethylene pressure head.

4. The detection device integrating rod length and straightness detection according to claim 3, characterized in that: Two stoppers (10) are fixedly arranged on the top surface of the gasket strip (9), two connecting frames (23) corresponding to the stoppers (10) are fixedly arranged on the front end surface of the gasket strip (9), and a clamping cylinder (11) is fixedly arranged on the top surface of the two connecting frames (23).

5. The detection device integrating rod length and straightness detection according to claim 4, characterized in that: The cushion strip (9) is provided with two through slots (24) penetrating the front and rear end surfaces thereof, and the two through slots (24) are respectively located on the outsides of the two stoppers (10).

6. The detection device integrating rod length and straightness detection according to claim 5, characterized in that: The transverse screw nut pair (18) is arranged parallel to the gasket strip (9).

7. The detection device integrating rod length and straightness detection according to claim 6, characterized in that: An L plate (25) is fixedly arranged on the front end surface of the sliding plate (21), and the laser sensor (22) is fixedly arranged on the left end surface of the L plate (25).

8. The detection device integrating rod length and straightness detection according to claim 7, characterized in that: The front side of the machine (5) is also provided with a shelf assembly (26) for placing the rod (1). The shelf assembly (26) is arranged on the front side of the machine (5). The shelf assembly (26) comprises a shelf frame (27). A plurality of longitudinally arranged shelf bars (28) are fixedly arranged on the top surface of the shelf frame (27). A plurality of grooves (29) are provided on the top surface of each shelf bar (28) at intervals along its length direction. A robot arm for grabbing the rod (1) is arranged on the right side of the shelf assembly (26).

9. The detection device integrating rod length and straightness detection according to claim 8, characterized in that: The detection device also includes a controller, which is electrically connected to the transverse screw nut pair (18), the vertical screw nut pair (20), the clamping cylinder (11), the contact sensor A (14) and the contact sensor B (16) via signal lines.

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