CN216205963U

CN216205963U - Bar-bell rod straightness detection device

Info

Publication number: CN216205963U
Application number: CN202122506962.2U
Authority: CN
Inventors: 戴一徐; 孙燕霞
Original assignee: Nantong Hengli Sports Goods Co ltd
Current assignee: Nantong Hengli Sports Goods Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-04-05
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a device for detecting the straightness of a barbell bar, which is applied to the field of detection of barbell bars and solves the technical problem that errors exist when the barbell bar is manually pushed to move; a transmission component is arranged between the bracket and the fulcrum; the transmission assembly comprises a slide rail horizontally arranged for limiting the moving direction of the fulcrum, a screw rod driving the fulcrum to move and a power source driving the screw rod to rotate; the dial indicator is connected with an upper line and lower line out-of-tolerance alarm assembly; a fixing component for fixing the barbell bar is arranged above the fulcrum; the fixing component comprises an elastic clamping piece arranged on one fulcrum and a driven piece arranged on the other fulcrum; the device has the technical effects that through the arrangement of the transmission assembly and the fixing assembly, the manual rotation is replaced by a constant-speed and stable mechanical rotation mode, so that the influence of human factors on the detection result is reduced; the conical elastic sheet is abutted against the barbell rod, so that the stability of the barbell rod is enhanced, and the barbell rod is prevented from shaking during detection.

Description

Bar-bell rod straightness detection device

Technical Field

The utility model relates to the field of barbell detection, in particular to a device for detecting straightness of a barbell bar.

Background

The barbell is a sports training device and is also a weight lifting device, and consists of a barbell bar, barbell plates and a hoop; the straightness is a dimension index to be detected in the production process of the barbell bar; the barbell bar straightness detector is one detector for detecting the straightness of barbell bar.

At present, the linearity is generally measured by a meter-making method, namely, a meter seat of an indicating meter is continuously or intermittently moved on a precise flat plate at a certain distance, and the linearity error of a measured piece relative to the flat plate is read by the indicating meter.

The detection mode can detect the straightness of the barbell bar, but in the actual detection process, no special straightness detection instrument is provided, two supporting points and a dial indicator are generally fixed on a bracket, and then the barbell bar is manually moved to measure the straightness; when in detection, the barbell rod is manually moved while the dial indicator is observed, and the manual operation during the movement not only moves the barbell rod, but also has influence on the detection result.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a barbell bar straightness detection device which has the advantages that the machine replaces manual moving of the barbell bar, and errors caused by manual operation are avoided.

The technical purpose of the utility model is realized by the following technical scheme: a barbell bar straightness detection device comprises a bracket, a dial indicator fixed on the bracket and a fulcrum arranged on the bracket;

a transmission component for driving the fulcrum to move is arranged between the bracket and the fulcrum;

the transmission assembly comprises a slide rail horizontally arranged for limiting the moving direction of the fulcrum, a screw rod driving the fulcrum to move and a power source driving the screw rod to rotate;

the screw rod is provided with one screw rod, and the two supporting points are connected with the screw rod;

the dial indicator is connected with an upper line and lower line out-of-tolerance alarm assembly;

a fixing component for fixing the barbell bar is arranged above the fulcrum; the fixing component comprises an elastic clamping piece arranged on one fulcrum and a driven piece arranged on the other fulcrum; the elastic clamping piece comprises an installation cylinder fixed above the fulcrum and a conical elastic sheet arranged on the inner side of the installation cylinder and abutted against the outer side of the barbell bar.

According to the technical scheme, the fulcrum is connected with the slide rail in a sliding manner, so that the fulcrum drives the barbell bar to slide, and the straightness is detected; the sliding block is connected with the fulcrum and the screw rod and is used for driving the fulcrum to move so as to drive the barbell rod to move; the upper line and lower line out-of-tolerance alarm assembly is connected with the dial indicator, detects the barbell bar exceeding the limit and gives an alarm, so that possible negligence in manual observation of the dial indicator is avoided; the conical elastic sheet is arranged on the inner side of the mounting cylinder and abuts against the barbell bar, so that the stability of the barbell bar is enhanced, and the barbell bar is prevented from shaking during detection; the servo motor drives the screw rod to move so as to drive the fulcrum to move, the rotating speed of the mechanical rotating mode is uniform and stable, and the influence on the detection result is reduced.

The utility model is further configured to: the sliding rail is provided with a supporting seat in a sliding manner, the supporting seat extends to form a threaded cylinder matched with the lead screw, and the supporting seat is provided with an arc-shaped groove matched with the barbell bar.

Through the technical scheme, the supporting seat is arranged on the support in a sliding mode and provided with the arc-shaped groove, the barbell bar is convenient to place on the supporting seat, and then the barbell bar is convenient to slide into the mounting cylinder, and the barbell bar is convenient to feed.

The utility model is further configured to: the driven piece is provided with a pressing-in clamping groove for the barbell bar to rotate, and a conical rubber block is fixed at the opening of the pressing-in clamping groove.

Through the technical scheme, the driven part is arranged on one fulcrum and is provided with the press-in clamping groove, so that the other end of the barbell bar is conveniently supported, the barbell bar and the driven part can be conveniently inserted and separated by adopting a press-in mode, and the time for loading and unloading is further saved; the conical rubber block is arranged at the opening of the press-in clamping groove, so that the barbell bar can conveniently slide into the press-in clamping groove, and the connection between the barbell bar and the driven piece is also facilitated.

The utility model is further configured to: the installation section of thick bamboo is connected with rotating assembly, rotating assembly include with installation section of thick bamboo fixed connection's connecting sleeve and drive connecting sleeve pivoted servo motor.

According to the technical scheme, the connecting sleeve is fixedly connected with the mounting cylinder and used for driving the mounting cylinder to rotate, and the servo motor is used for driving the connecting sleeve to rotate; through setting up the runner assembly, be convenient for drive the barbell pole and rotate, and then use the percentage table to detect the circle of barbell pole and beat, do not influence under the prerequisite that the straightness accuracy detected, increase the circle and beat and detect the function.

The utility model is further configured to: and a driven gear is fixed on the outer side of the connecting sleeve, and a driving gear meshed with the driven gear is fixed on the outer side of a main shaft of the servo motor.

Through above-mentioned technical scheme, set up gear drive between servo motor and the connecting sleeve, gear drive transmission precision is high and the transmission is stable.

The utility model is further configured to: a guide inclined plane convenient for inserting the barbell bar into the mounting cylinder is arranged in the connecting sleeve.

Through the technical scheme, the guide inclined plane is arranged in the connecting sleeve, plays a role in guiding the barbell bar and is convenient for the insertion of the barbell bar.

The utility model is further configured to: an adjusting bracket is arranged between the dial indicator and the rack and comprises a mounting seat fixed on the support, a first support arm with one end hinged with the mounting seat, a second support arm hinged with the first support arm and a dial indicator fixing frame hinged with the second support arm and far away from one end of the first support arm.

Through above-mentioned technical scheme, adjust first support arm, second support arm and percentage table mount, be convenient for adjust the position of percentage table.

The utility model is further configured to: the percentage table is digital display percentage table, the line loading and unloading overproof alarm assembly includes the controller of being connected with the percentage table and the warning light of being connected with the controller, the warning light is fixed on the support.

Through the technical scheme, the controller is connected with the digital display dial indicator, the fluctuation range of the dial indicator is detected and recorded, a signal is transmitted to the alarm lamp after the fluctuation range exceeds a limit value, manual detection is replaced by mechanical detection, and the credibility of the detection is kept.

In conclusion, the utility model has the following beneficial effects:

1. through the arrangement of the transmission assembly and the fixing assembly, the screw rod drives the fulcrum to move, and a constant-speed and stable mechanical rotation mode is adopted to replace manual rotation, so that the influence of human factors on a detection result is reduced; the conical elastic sheet is abutted against the barbell bar, so that the stability of the barbell bar is enhanced, and the barbell bar is prevented from shaking during detection;

2. by arranging the upper and lower line out-of-tolerance alarm assembly, the barbell bar exceeding the straightness is alarmed, and possible negligence and reading errors which are difficult to avoid when the dial indicator is observed manually are avoided;

3. through setting up the runner assembly, servo motor drives the installation section of thick bamboo and rotates and then drive the barbell pole and rotate, under the prerequisite that does not influence the straightness accuracy and detect, increases the circle and beats the detection function.

Drawings

Fig. 1 is an overall configuration diagram of the present embodiment;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of the portion B of FIG. 1;

fig. 4 is a schematic structural view of the fulcrum of the present embodiment.

Reference numerals: 1. a support; 2. a dial indicator; 3. a fulcrum; 4. a supporting seat; 5. a transmission assembly; 7. a base; 8. a side plate; 9. a slide rail; 10. a screw rod; 11. a power source; 12. a sliding part; 13. a heightening column; 14. a slider; 15. a threaded barrel; 16. an elastic clamping member; 17. a driven member; 18. mounting the cylinder; 19. a conical spring plate; 20. pressing into a clamping groove; 21. a conical rubber block; 22. a rotating assembly; 23. a connecting sleeve; 24. a servo motor; 25. mounting a plate; 26. a guide slope; 27. a driven gear; 28. a driving gear; 29. an adjusting bracket; 30. a mounting seat; 31. a first support arm; 32. a second support arm; 33. a dial indicator fixing frame; 34. a support plate; 35. an alarm light.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1 and 4, a barbell bar straightness detection device comprises a support 1, and a dial indicator 2, a fulcrum 3, a support seat 4 and a transmission assembly 5 which are connected with the support 1, wherein a fixing assembly is arranged on the fulcrum 3; the bracket 1 is used as a mounting rack of each part and is used for mounting and fixing the part; the dial indicator 2 is fixed on the bracket 1 and used for detecting the barbell bar; the transmission assembly 5 is arranged on the bracket 1 and drives the fulcrum 3 and the supporting seat 4 to slide; the fulcrum 3 and the dial indicator 2 slide relatively, so that the barbell bar is supported, and the dial indicator 2 can detect the straightness of the barbell bar conveniently; the supporting seat 4 is arranged between the two support points 3, and is used for supporting the barbell bar and facilitating loading and unloading of the barbell bar; the fixing component is arranged on the pivot 3 and clamps the barbell bar to prevent the barbell bar from shaking.

Referring to fig. 1, the bracket 1 includes a base 7 and a side plate 8 disposed above the base 7, and the transmission assembly 5 includes a slide rail 9 fixed on the base 7, a screw rod 10 rotatably mounted on the slide rail 9, and a power source 11 for driving the screw rod 10 to rotate; the sliding rail 9 is welded above the base 7 and is horizontally arranged; one end of the slide rail 9 is provided with a bearing seat, and the other end is fixedly connected with a power source 11; the power source 11 is a servo motor and is fixed at one end of the slide rail 9 through a bolt; the screw rod 10 is rotatably arranged in the slide rail 9, and two ends of the screw rod 10 are respectively connected with the power source 11 and the bearing seat; the two fulcrums 3 are respectively arranged at two sides of the sliding rail 9, and each fulcrum 3 comprises a sliding part 12 arranged on the sliding rail 9 in a sliding mode and a heightening column 13 arranged on the fixed block; a slide block 14 is fixed on the lower side of the sliding part 12, and a threaded hole in threaded fit with the screw rod 10 is formed in the slide block 14; the supporting seat 4 is provided with two, and two supporting seats 4 are fixed on slide rail 9, and open the top of supporting seat 4 has the arc wall, and the bottom of supporting seat 4 is provided with the screw thread section of thick bamboo 15 with lead screw 10 screw-thread fit equally.

Referring to fig. 1, 2 and 4, a fixing assembly is arranged above the heightening column 13, and comprises an elastic clamping piece 16 mounted above one fulcrum 3 and a driven piece 17 mounted on the other fulcrum 3; the elastic clamping piece 16 comprises a mounting tube 18 fixed above the fulcrum 3 and a conical spring piece 19 which is arranged on the inner side of the mounting tube 18 and is abutted against the outer side of the barbell bar; the mounting cylinder 18 is a hollow cylinder, 3 conical elastic sheets 19 are arranged along the circumferential direction of the mounting cylinder 18 and are respectively arranged on the upper wall and two sides of the mounting cylinder 18, the conical elastic sheets 19 are conical, one side arm of each conical elastic sheet 19 is fixedly connected with the inner wall of the mounting cylinder 18, the other support arm inclines into the mounting cylinder 18, and the open end of each conical elastic sheet 19 faces the power source 11; two support arms of the conical elastic sheet 19 are hinged, and a spring is arranged between the inclined support arm and the support arm fixed on the inner wall of the mounting cylinder 18; the driven part 17 is a fixed plate fixed on the heightening column 13, the driven part 17 is U-shaped, the U-shaped groove of the driven part 17 is a press-in clamping groove 20, and a conical rubber block 21 is fixed on the driven part 17 at the opening of the press-in clamping groove 20.

Referring to fig. 1 and 4, a rotating assembly 22 is connected to the mounting cylinder 18, and the rotating assembly 22 includes a connecting sleeve 23 fixedly connected to the mounting cylinder 18 and a servo motor 24 for driving the connecting sleeve 23 to rotate; a mounting plate 25 is fixed on the heightening column 13 of the fulcrum 3, a sliding groove is formed on the mounting plate 25, the connecting sleeve 23 is arranged in the sliding groove, a guide inclined surface 26 is arranged on the inner wall of the connecting sleeve 23, and the guide inclined surface 26 extends to the mounting cylinder 18; a driven gear 27 is fixed on the outer wall of the connecting sleeve 23; the servo motor 24 is fixed on the mounting plate 25 through bolts, a driving gear 28 is fixed on a main shaft of the servo motor 24, and the driving gear 28 is meshed with the driven gear 27.

Referring to fig. 1 and 3, an adjusting bracket 29 is arranged between the dial indicator 2 and the support 1, the adjusting bracket 29 includes a mounting base 30 fixed on the support 1, a first support arm 31 hinged with the mounting base 30, a second support arm 32 hinged with the first support arm 31, and a dial indicator fixing bracket 33 hinged on the second support arm 32, the mounting base 30 is in a strip shape, a support plate 34 is arranged on the mounting base 30, a fixing hole is formed on the support plate 34, a hinge column is arranged in the fixing hole, and a hinge hole matched with the hinge column is formed at one end of the first support arm 31; the first support arm 31 and the second support arm 32, the second support arm 32 and the dial indicator fixing frame 33 are connected in the same way as the mounting base 30 and the first support arm 31.

Referring to fig. 1 and 3, the dial indicator 2 is connected with an upper line and lower line out-of-tolerance alarm assembly, the upper line and lower line out-of-tolerance alarm assembly comprises a controller connected with the dial indicator 2 and an alarm lamp 35 connected with the controller, the dial indicator 2 is a digital display type dial indicator, and the controller is arranged in the dial indicator 2; the warning light 35 is fixed above the stand 1.

Working process and principle of the embodiment

Putting the barbell bar on the supporting seat 4, pushing the barbell bar to the connecting sleeve 23, inserting one end of the barbell bar into the connecting sleeve 23, continuously and inwards abutting against the conical elastic sheet 19, abutting against the conical elastic sheet 19 to enable the side arm of the conical elastic sheet 19 to rotate, abutting against the spring, and pushing the side arm of the conical elastic sheet 19 by the reaction force of the spring; pressing the other end of the barbell bar into the clamping groove 20, and adjusting the adjusting bracket 29 to enable the two dial indicators 2 to be abutted against the barbell bar; then the power source 11 drives the screw rod to rotate, further drives the fulcrum 3 and the supporting seat 4 to move along the slide rail 9, further drives the barbell bar to move, the dial indicator 2 detects the straightness of the barbell bar, and an alarm is given when the straightness exceeds the upper line and the lower line;

when detecting the circle and beating, fix the barbell pole according to above-mentioned mode, servo motor 24 drives driving gear 28 and rotates, and driving gear 28 drives driven gear 27 and rotates, and then drives the barbell pole and rotate, and percentage table 2 detects the circle of barbell pole and beats, and the circle is beated and is surpassed and send the warning when going off the production line.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A barbell bar straightness detection device comprises a support (1), a dial indicator (2) fixed on the support (1) and a fulcrum (3) arranged on the support (1);

the device is characterized in that a transmission component (5) for driving the fulcrum (3) to move is arranged between the bracket (1) and the fulcrum (3);

the transmission assembly (5) comprises a slide rail (9) which is horizontally arranged and used for limiting the moving direction of the fulcrum (3), a screw rod (10) which drives the fulcrum (3) to move and a power source (11) which drives the screw rod (10) to rotate;

one screw rod (10) is arranged, and the two fulcrums (3) are connected with the screw rod (10);

the dial indicator (2) is connected with an upper and lower line out-of-tolerance alarm assembly;

a fixing component for fixing the barbell bar is arranged above the fulcrum (3); the fixing component comprises an elastic clamping piece (16) arranged on one fulcrum (3) and a driven piece (17) arranged on the other fulcrum (3); the elastic clamping piece (16) comprises an installation cylinder (18) fixed above the fulcrum (3) and a conical spring piece (19) which is installed on the inner side of the installation cylinder (18) and is abutted against the outer side of the barbell bar.

2. The barbell bar straightness detection device according to claim 1, wherein a support base (4) is slidably disposed on the slide rail (9), a threaded cylinder (15) engaged with the lead screw (10) extends from the support base (4), and an arc-shaped groove engaged with the barbell bar is formed in the support base (4).

3. The barbell bar straightness detecting device according to claim 2, wherein the follower (17) has a pressing-in clamping groove (20) for the rotation of the barbell bar, and a tapered rubber block (21) is fixed at an opening of the pressing-in clamping groove (20).

4. The barbell bar straightness detecting device according to claim 3, wherein a rotation member (22) is connected to the mounting tube (18), and the rotation member (22) includes a connection sleeve (23) fixedly connected to the mounting tube (18) and a servo motor (24) for driving the connection sleeve (23) to rotate.

5. The barbell bar straightness detecting device according to claim 4, wherein a driven gear (27) is fixed to an outer side of the coupling sleeve (23), and a driving gear (28) engaged with the driven gear (27) is fixed to an outer side of a main shaft of the servo motor (24).

6. The barbell bar straightness detection apparatus according to claim 4, wherein the connection sleeve (23) is provided with a guide slope (26) for facilitating insertion of the barbell bar into the mounting tube (18).

7. The barbell bar straightness detection device according to any one of claims 1 to 5, wherein an adjusting bracket (29) is arranged between the dial indicator (2) and the support (1), and the adjusting bracket (29) comprises a mounting base (30) fixed on the support (1), a first support arm (31) with one end hinged to the mounting base (30), a second support arm (32) hinged to the first support arm (31), and a dial indicator fixing frame (33) hinged to one end of the second support arm (32) far away from the first support arm (31).

8. The barbell bar straightness detection device according to claim 7, wherein the dial indicator (2) is a digital display type dial indicator, the up-down line out-of-tolerance alarm assembly comprises a controller connected with the dial indicator (2) and an alarm lamp (35) connected with the controller, and the alarm lamp (35) is fixed on the bracket (1).