CN211042553U

CN211042553U - Torque testing equipment

Info

Publication number: CN211042553U
Application number: CN201921928596.6U
Authority: CN
Inventors: 李习诚; 陈扬; 李明
Original assignee: Foshan Launch Sinter Metals Co ltd
Current assignee: Foshan Launch Sinter Metals Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-07-17
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a torque testing device, which comprises a lower bracket, wherein a lower shaft seat is arranged at the middle position of the top end of the lower bracket, a shaft hole is formed at the middle position of the lower shaft seat, a rotating shaft is arranged inside the shaft hole, a compensating spring is connected at the middle position inside the rotating shaft, a second connecting rod is fixed above the compensating spring, a servo reducing motor is fixed below the compensating spring, a split profiling jig is arranged above the second connecting rod, and an upper bracket is connected above the lower bracket; the utility model discloses a cylinder, two D axles, sensor, mechanical clamping jaw, components of a whole that can function independently profile modeling tool and servo gear motor mutually support, realize the torque test of work piece, this kind of mode is than prior art, can prevent effectively that servo gear motor from rotating the vibration transmission that the in-process produced to the sensor on, improves the test accuracy of sensor, has good market competition.

Description

Torque testing equipment

Technical Field

The utility model belongs to the technical field of the moment of torsion test, concretely relates to moment of torsion test equipment.

Background

The torque testing technology is a subject of comprehensive application of multiple knowledge of machinery, electronics, physics, computers and the like, and the research and production conditions of the torque testing equipment represent the level of basic industry and modern scientific research of a country.

The prior art has the following problems: the existing torque testing equipment connects the output shaft of the motor, the sensor and the mechanical clamping jaw together, and then is matched with other structures to realize torque testing, although the structure does not influence normal torque testing, the motor can transmit vibration generated by rotation to the sensor in the testing process, so that the problem of inaccurate testing of the sensor is caused.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a torque testing equipment has and can prevent effectively that servo gear motor from rotating the vibration transmission that the in-process produced to the sensor on, improves the characteristics of sensor test accuracy.

In order to achieve the above object, the utility model provides a following technical scheme: a torque testing device comprises a lower support, wherein a lower shaft seat is installed in the middle of the top end of the lower support, a shaft hole is formed in the middle of the lower shaft seat, a rotating shaft is installed inside the shaft hole, a compensation spring is connected in the middle of the inside of the rotating shaft, a second connecting rod is fixed above the compensation spring, a servo speed reduction motor is fixed below the compensation spring, a split profiling jig is installed above the second connecting rod, an upper support is connected above the lower support, an upper shaft seat is installed in the middle of the top end of the upper support, an air cylinder is connected above the upper shaft seat, double D shafts are connected inside the upper shaft seat, a sensor is installed below the double D shafts, and a mechanical clamping jaw is installed below the sensor;

components of a whole that can function independently profile modeling tool includes connecting piece, fastening block, fastener, locking bolt, recess, base, thin straight-tooth and head rod, wherein, the recess has been seted up to the inside of base, the connecting piece is installed to the inside intermediate position of recess, and all installs the fastening block in the inside left and right sides of recess, be connected through the fastener between connecting piece and the fastening block, the head rod is installed to the top of connecting piece, all through locking bolt fixed connection between connecting piece and second connecting rod and connecting piece and the head rod, the externally mounted of head rod has thin straight-tooth.

Preferably, the upper end of the sensor is connected to the lower end of the double-D shaft through a fastening bolt, and the lower end of the sensor is connected to the upper end of the mechanical clamping jaw through a fastening bolt.

Preferably, the central axes of the double D-axis, the sensor and the mechanical clamping jaw coincide.

Preferably, a through hole is formed in the upper support and corresponds to the output shaft of the air cylinder, and the output shaft of the air cylinder penetrates through the through hole to be connected with the double D shafts.

Preferably, two bearings are arranged in the gap between the rotating shaft and the shaft hole.

Preferably, a through hole is formed in the lower support and corresponds to the lower shaft seat, and the lower shaft seat penetrates through the through hole and is fixed on the lower support in a fastening bolt mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a cylinder, two D axles, sensor, mechanical clamping jaw, components of a whole that can function independently profile modeling tool and servo gear motor mutually support, realize the torque test of work piece, this kind of mode is than prior art, can prevent effectively that servo gear motor from rotating the vibration transmission that the in-process produced to the sensor on, improves the test accuracy of sensor, has good market competition.

2. The utility model discloses the central axis between two D axle, sensor, the mechanical clamping jaw three coincides mutually, and this kind of structure makes the torque that the sensor detected less with the error that the output torque of mechanical clamping jaw exists (the output torque of mechanical clamping jaw is the same with the moment of torsion of work piece), has further improved the degree of accuracy of work piece torque test.

3. The utility model discloses components of a whole that can function independently profile modeling tool comprises connecting piece, fastening block, fastener, locking bolt, recess, base, thin straight-tooth and head rod, and this kind of structure not only can effectual fixed treat the moment of torsion test work piece, improves the test stability of work piece, but also can the effectual degree of difficulty that reduces the tool processing and the time of changing the tool.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1A according to the present invention;

in the figure: 1. a cylinder; 2. a dual D-axis; 3. an upper shaft seat; 4. a sensor; 5. a mechanical jaw; 6. an upper bracket; 7. a compensation spring; 8. a rotating shaft; 9. a servo deceleration motor; 10. a lower bracket; 11. a shaft hole; 12. a lower shaft seat; 13. a split profiling jig; 131. a connecting member; 132. a fastening block; 133. a fastener; 134. locking the bolt; 135. a groove; 136. a base; 137. fine straight teeth; 138. a first connecting rod; 14. a second connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides the following technical solutions: a torque testing device comprises a lower support 10, a lower shaft seat 12 is installed at the middle position of the top end of the lower support 10, in order to fix the lower shaft seat 12 on the lower support 10, in the embodiment, preferably, a through hole is formed in the lower support 10 and corresponds to the position of the lower shaft seat 12, the lower shaft seat 12 penetrates through the through hole and is fixed on the lower support 10 in a fastening bolt mode, a shaft hole 11 is formed in the middle position of the lower shaft seat 12, a rotating shaft 8 is installed inside the shaft hole 11, and in order to facilitate the rotation of the rotating shaft 8, preferably, two bearings are installed in a gap between the rotating shaft 8 and the shaft hole 11, a compensation spring 7 is connected to the middle position inside the rotating shaft 8, a second connecting rod 14 is fixed above the compensation spring 7, a servo speed reduction motor 9 is fixed below the compensation spring 7, and a split copying jig 13 is installed above the second connecting rod 14, an upper bracket 6 is connected above the lower bracket 10, an upper shaft seat 3 is installed at the middle position of the top end of the upper bracket 6, a cylinder 1 is connected above the upper shaft seat 3, a double-D shaft 2 is connected inside the lower portion of the upper shaft seat 3, in order to connect the output shaft of the cylinder 1 with the double-D shaft 2, in the embodiment, preferably, a through hole is arranged on the upper bracket 6 and corresponding to the output shaft of the cylinder 1, the output shaft of the cylinder 1 passes through the through hole to be connected with the double-D shaft 2, a sensor 4 is installed below the double-D shaft 2, a mechanical clamping jaw 5 is installed below the sensor 4, in order to fix the sensor 4 between the double-D shaft 2 and the mechanical clamping jaw 5, in the embodiment, preferably, the upper end of the sensor 4 is connected to the lower end of the double-D shaft 2 through a fastening bolt, and the lower end of the sensor 4 is connected to the upper end of, in this embodiment, it is preferable that the central axes of the dual D-axis 2, the sensor 4 and the mechanical jaw 5 coincide;

the split profiling jig 13 comprises a connecting piece 131, a fastening block 132, a fastening piece 133, a locking bolt 134, a groove 135, a base 136, thin straight teeth 137 and a first connecting rod 138, wherein the groove 135 is formed in the base 136, the connecting piece 131 is installed in the middle of the inner portion of the groove 135, the fastening blocks 132 are installed on the left side and the right side of the inner portion of the groove 135, the connecting piece 131 is connected with the fastening block 132 through the fastening piece 133, the first connecting rod 138 is installed above the connecting piece 131, the connecting piece 131 and the second connecting rod 14 and the connecting piece 131 and the first connecting rod 138 are fixedly connected through the locking bolt 134, and the thin straight teeth 137 are installed outside the first connecting rod 138.

The utility model discloses a theory of operation and use flow: in the use process of the utility model, a workpiece to be tested is firstly placed outside the thin straight teeth 137, then the cylinder 1 on the upper bracket 6 is started by the external power supply, the cylinder 1 drives the double D shafts 2 inside the upper shaft seat 3 to move downwards, the double D shafts 2 drive the sensor 4 and the mechanical clamping jaws 5 to move downwards, the mechanical clamping jaws 5 clamp the workpiece to be tested, then the servo reducing motor 9 on the lower bracket 10 is started by the external power supply, the servo reducing motor 9 drives the split copying jig 13 to rotate through the rotating shaft 8, the split copying jig 13 drives the workpiece to rotate, so that the workpiece is screwed or unscrewed on the thin straight teeth 137, in the process of screwing or unscrewing the workpiece, the mechanical clamping jaws 5 synchronously rotate (the clamping jaw part of the mechanical clamping jaws 5 is rotationally connected with the mechanical seat through the rotating part), because the sensor 4 is directly connected with the mechanical clamping jaws 5, the torque of the mechanical clamping jaws 5 can be directly tested, in the testing process, as the central axes of the mechanical clamping jaw 5, the sensor 4 and the double D-shaft 2 are the same, the error between the torque detected by the sensor 4 and the output torque of the mechanical clamping jaw 5 is smaller, and the accuracy of the torque test of the workpiece is improved; when the split copying jig 13 is used for a long time and the slender straight teeth 137 need to be replaced, the locking bolts 134 of the first connecting rod 138 and the connecting piece 131 are disassembled, the slender straight teeth 137 part is replaced, and then the locking bolts 134 are fixed on the connecting piece 131, when the split copying jig 13 is used for a long time and the base 136 needs to be replaced, the locking bolts 134 of the first connecting rod 138 and the connecting piece 131 as well as the connecting piece 131 and the second connecting rod 14 are disassembled, then the fastening block 132, the fastening piece 133 and the connecting piece 131 are sequentially taken out, the slender straight teeth 137 part and the base 136 part are taken down, the base 136 part is replaced, the connecting piece 131 is fixed in the groove 135 of the base 136 through the fastening block 132 and the fastening piece 133, the first connecting rod 138 and the connecting piece 131 as well as the connecting piece 131 and the second connecting rod 14 are connected through the locking bolts 134, when the split copying jig 13 is used for a long time, the locking bolt 134 of split connecting piece 131 and second connecting rod 14, change new whole, rethread locking bolt 134 fix on second connecting rod 14 can, this kind of structure not only can effectually fix and treat the moment of torsion test work piece, improves the test stability of work piece, but also can the effectual degree of difficulty that reduces the tool processing and the time of changing the tool.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A torque testing device comprising a lower cradle (10), characterized in that: a lower shaft seat (12) is installed at the middle position of the top end of the lower support (10), a shaft hole (11) is formed in the middle position of the lower shaft seat (12), a rotating shaft (8) is installed inside the shaft hole (11), a compensating spring (7) is connected to the middle position of the inside of the rotating shaft (8), a second connecting rod (14) is fixed above the compensating spring (7), a servo speed reducing motor (9) is fixed below the compensating spring (7), a split profiling jig (13) is installed above the second connecting rod (14), an upper support (6) is connected above the lower support (10), an upper shaft seat (3) is installed at the middle position of the top end of the upper support (6), a cylinder (1) is connected above the upper shaft seat (3), a double D shaft (2) is connected inside the lower portion of the upper shaft seat (3), and a sensor (4) is installed below the double D shaft (2), a mechanical clamping jaw (5) is arranged below the sensor (4);

the split profiling jig (13) comprises a connecting piece (131), a fastening block (132), a fastening piece (133), a locking bolt (134), a groove (135), a base (136), straight thin teeth (137) and a first connecting rod (138), wherein, a groove (135) is arranged in the base (136), a connecting piece (131) is arranged in the middle of the inner part of the groove (135), and the left and right sides of the inner part of the groove (135) are respectively provided with a fastening block (132), the connecting piece (131) is connected with the fastening blocks (132) through a fastening piece (133), first connecting rod (138) are installed to the top of connecting piece (131), all through locking bolt (134) fixed connection between connecting piece (131) and second connecting rod (14) and connecting piece (131) and first connecting rod (138), the externally mounted of first connecting rod (138) has thin straight-tooth (137).

2. A torque testing device according to claim 1, wherein: the upper end of the sensor (4) is connected to the lower end of the double D shaft (2) through a fastening bolt, and the lower end of the sensor (4) is connected to the upper end of the mechanical clamping jaw (5) through a fastening bolt.

3. A torque testing device according to claim 1, wherein: the central axes of the double D-axis (2), the sensor (4) and the mechanical clamping jaw (5) are coincident.

4. A torque testing device according to claim 1, wherein: and a through hole is formed in the upper bracket (6) and corresponds to the output shaft of the air cylinder (1), and the output shaft of the air cylinder (1) penetrates through the through hole to be connected with the double D shafts (2).

5. A torque testing device according to claim 1, wherein: and two bearings are arranged in the gap between the rotating shaft (8) and the shaft hole (11).

6. A torque testing device according to claim 1, wherein: a through hole is formed in the lower support (10) and corresponds to the position of the lower shaft seat (12), and the lower shaft seat (12) penetrates through the through hole and is fixed on the lower support (10) in a fastening bolt mode.