CN216669237U

CN216669237U - Push rod resistance test bench that stretches out and draws back

Info

Publication number: CN216669237U
Application number: CN202123441393.4U
Authority: CN
Inventors: 朱正朝; 樊权锋; 单路
Original assignee: Maijule Shanghai Automobile Machinery Co ltd
Current assignee: Maijule Shanghai Automobile Machinery Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-03
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a flexible resistance test bench of push rod, the field of electric lift table is related to, it includes the workstation, it is provided with first mount pad to slide on the workstation, still be provided with the driving piece that is used for the sheathed tube centre gripping subassembly of centre gripping and the first mount pad of drive to remove on the workstation, the sleeve pipe centre gripping is fixed on the centre gripping subassembly, sheathed tube axial parallels with the moving direction of first mount pad, the one end that the driving piece was kept away from to first mount pad slides and is provided with the second mount pad that is used for the stationary lead screw drive end, the second mount pad is unanimous with first mount pad sliding direction, be provided with the dynamometry piece that is used for testing power value each other between first mount pad and the second mount pad. The method and the device have the advantages of being simple to operate and high in measurement accuracy.

Description

Push rod resistance test bench that stretches out and draws back

Technical Field

The utility model belongs to the technical field of electric lift table and specifically relates to a push rod resistance test bench that stretches out and draws back.

Background

The lifting table is a table capable of freely lifting, and one type of the lifting table is a sitting type lifting table, has small lifting amplitude, is suitable for users with different heights, and is a learning table with high lifting, which is commonly used by growing children; one type is a sitting and standing alternative lifting table, the lifting range is large, and two modes of sitting and working and standing and working can be realized. The lifting table can be divided into an electric lifting table and a mechanical lifting table.

In the related art, the electric lifting table comprises a motor, a push rod 1 and a table top. The push rod 1 comprises a screw rod 12 and a sleeve 11, the screw rod 12 penetrates through the sleeve 11 and is in threaded connection with the sleeve 11, a driving end 121 connected with a motor is arranged at the end part of the screw rod 12, and the driving end 121 is rotationally connected with the screw rod 12; the lateral wall of the end, far away from the driving end 121, of the sleeve 11 is provided with a fixing hole 111 for connecting a desktop in a penetrating mode, the sleeve 11 is fixed on the desktop through the fixing hole 111, and the motor drives the screw rod 12 to rotate through the driving end 121 so that the desktop can be lifted.

For the related technologies, the push rod 1 needs to detect the matching between the screw rod 12 and the sleeve 11 before the delivery, and detect whether the rotational resistance between the screw rod 12 and the sleeve 11 meets the delivery standard. Therefore, the inventor provides a push rod 1 telescopic resistance test bench.

SUMMERY OF THE UTILITY MODEL

For the rotation resistance between convenient test lead screw and the sleeve pipe, this application provides a flexible resistance test bench of push rod, has easy operation, the accurate effect of test value.

The application provides a pair of push rod resistance test bench that stretches out and draws back adopts following technical scheme:

the utility model provides a flexible resistance test bench of push rod, includes the workstation, it is provided with first mount pad to slide on the workstation, still be provided with on the workstation and be used for centre gripping sheathed tube centre gripping subassembly and drive the driving piece that first mount pad removed, the sleeve pipe centre gripping is fixed on the centre gripping subassembly, sheathed tube axial with the moving direction of first mount pad parallels, first mount pad is kept away from the one end of driving piece slides and is provided with the second mount pad that is used for the stationary lead screw drive end, the second mount pad with first mount pad slip direction is unanimous, be provided with the dynamometry piece that is used for testing power value each other between first mount pad and the second mount pad.

By adopting the technical scheme, the first mounting seat and the second mounting seat are arranged on the workbench in a sliding manner, the clamping assembly is arranged to clamp and fix the sleeve and fix the driving end of the screw rod on the second mounting seat, the force measuring piece is arranged between the first mounting seat and the second mounting seat, the first mounting seat is driven by the driving piece to move towards one side of the second mounting seat at a constant speed, the second mounting seat is pushed by the force measuring piece, the screw rod is pulled out of the sleeve by the second mounting seat, and the force value of the screw rod in the process of pulling out the screw rod from the sleeve can be tested by the force measuring piece; when the driving piece drives the first mounting seat to move to a set position, the driving piece moves back and forth, the screw rod is inserted into the sleeve, the force measuring piece can test the resistance of the screw rod in the inserting process, and a worker can judge whether a product is qualified according to data tested by the force measuring piece.

Optionally, a fixing groove for installing the force measuring piece is formed in the first installation, a force measuring head with a convex-shaped cross-section outline is arranged on one side, close to the second installation seat, of the force measuring piece, and a T-shaped clamping groove is formed in the second installation seat and corresponds to the force measuring head.

Through adopting above-mentioned technical scheme, set up the fixed slot on first mount pad, set up T shape draw-in groove on the second mount pad, the dynamometry piece can be between the smooth installation in the fixed slot of inserting, and the dynamometry head can be between smooth installation in T shape draw-in groove, makes the installation of dynamometry piece more convenient.

Optionally, the workbench is further provided with two guide rods parallel to each other, the guide rods are provided with two sliding blocks, and the first mounting seat and the second mounting seat are respectively fixed on the two sliding blocks.

Through adopting above-mentioned technical scheme, set up two guide bars and set up the slider on the guide bar on the workstation, first mount pad and second mount pad are all installed on the guide bar, make first mount pad and second mount pad all remove along the guide bar, make the position between first mount pad and the second mount pad more accurate, simultaneously, make the mounted position of dynamometry piece fixed to improve the precision of test value.

Optionally, the clamping assembly includes a clamping member for clamping the casing and a supporting block for supporting one end of the casing far away from the fixing hole, mounting grooves for placing the casing are formed in both the clamping member and the supporting block, and the openings of the mounting grooves face the same direction.

Through adopting above-mentioned technical scheme, set up holder and supporting shoe and set up the mounting groove that the opening orientation is the same on holder and supporting shoe, when testing, the sleeve pipe can insert the mounting groove of holder and supporting shoe simultaneously, makes sheathed tube installation convenience more.

Optionally, the clamping member includes a clamping block having a mounting groove, a pin hole is formed through a side wall of the clamping block, a pin shaft is inserted into the pin hole, an end of the pin shaft is inserted into the fixing hole, and a tightening bolt is further disposed on the clamping block and tightened against the side wall of the pin shaft.

Through adopting above-mentioned technical scheme, set up the grip block and set up the pinhole on the grip block, wear to establish the round pin axle in the pinhole, when testing, can insert the sheathed tube fixed orifices with the round pin axle, the sheathed tube position, the reuse supports tight bolt and supports tight round pin axle, makes sheathed tube installation more firm.

Optionally, a clamping groove for installing the driving end is formed in the second installation seat, and the direction of the opening of the clamping groove is consistent with that of the opening of the installation groove.

Through adopting above-mentioned technical scheme set up the joint groove on the second mount pad and unanimous with the opening orientation in joint groove and mounting groove, when the installation push rod, the drive end can the disect insertion joint groove, makes more convenient of installation.

Optionally, a start sensor for monitoring an initial position of the second mounting seat and an end sensor for monitoring an important position of the second mounting seat are arranged on the workbench.

By adopting the technical scheme, the starting point sensor and the end point sensor are arranged according to the starting position of the second mounting seat, in the test process, when the driving piece drives the second mounting seat to move to the end point position, the end point position sensor monitors that signals are output outwards and controls the driving piece to move back, and when the second mounting seat moves to the starting point position, the starting point position sensor monitors that signals are output outwards and controls the driving piece to stop moving.

Optionally, the drive member is provided as a servo electric cylinder.

Through adopting above-mentioned technical scheme, set up the driving piece into servo electronic jar, servo electronic jar control is simple, control accuracy is higher.

In summary, the present application includes at least one of the following beneficial technical effects:

the first mounting seat and the second mounting seat are arranged on the workbench in a sliding mode, the clamping assembly is arranged on one side, the sleeve of the push rod is clamped and fixed on the clamping assembly, the driving end of the screw rod is fixed on the second mounting seat, the force measuring piece is arranged between the first mounting seat and the second mounting seat, when the first mounting seat is driven by the driving piece to move towards one side at a constant speed, the second mounting seat is pushed towards one side by the first mounting seat through the force measuring piece and the screw rod is pulled out of the sleeve, the force value required for pulling out the screw rod can be measured by the force measuring piece, when the first mounting seat moves to a set value, the first mounting seat is driven by the driving piece to move towards the opposite direction, the force value required for inserting the screw rod into the sleeve can be measured by the force measuring piece, a worker can judge whether the push rod is qualified according to the measured data, and the structure is simple;

through setting up two guide bars on the workstation, all slide first mount pad and second mount pad and set up on the guide bar, first mount pad and second mount pad slide along the guide bar, and mutual position between first mount pad and the second mount pad is confirmed, makes the dynamometry piece install only bear pulling force and pressure on first mount pad and second mount pad, does not bear the power value of other directions, can effectively improve the measuring accuracy.

Drawings

FIG. 1 is a schematic structural diagram of a putter in accordance with the background of the present application;

FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 3 is a partially enlarged view of the area A in the embodiment of the present application;

FIG. 4 is a partially enlarged view of the region B in the embodiment of the present application.

Reference numerals: 1. a push rod; 11. a sleeve; 111. a fixing hole; 12. a screw rod; 121. a driving end; 2. a work table; 3. a first mounting seat; 31. mounting a plate; 32. fixing grooves; 4. a second mounting seat; 41. a T-shaped clamping groove; 42. a clamping groove; 5. a guide bar; 51. a slider; 6. a drive member; 71. a clamping member; 711. a clamping block; 712. a pin hole; 713. a pin shaft; 714. tightly abutting against the bolt; 715. mounting grooves; 72. a support block; 8. a starting point sensor; 9. an endpoint sensor; 10. a controller; 011. a force measuring member; 0111. a force measuring head.

Detailed Description

The present application is described in further detail below with reference to figures 2-4.

The embodiment of the application discloses telescopic resistance test bed of push rod, refer to fig. 2, including workstation 2, it is provided with first mount pad 3 and second mount pad 4 to slide on workstation 2, the direction of sliding of first mount pad 3 and second mount pad 4 is unanimous, install dynamometry piece 011 on first mount pad 3 and second mount pad 4, one side of keeping away from second mount pad 4 at first mount pad 3 is fixed with driving piece 6 that drives first mount pad 3 and remove, driving piece 6 sets up to servo electronic jar, be fixed with the centre gripping subassembly that is used for the fixed push rod 1 of centre gripping in one side of driving piece 6.

Referring to fig. 2 and 3, two guide rods 5 parallel to the moving direction of the driving member 6 are further fixed on the table 2, two sliding blocks 51 are provided on the guide rods 5, and the first mounting base 3 and the second mounting base 4 are respectively fixed on the two sliding blocks 51. The first mounting seat 3 is an L-shaped plate body, and a plate body on one side of the first mounting seat 3 is fixed with a piston rod of the driving part 6; the other side plate body is fixed on the sliding block 51 through bolts, four L-shaped mounting plates 31 are fixed on one side far away from the sliding block 51, and rectangular fixing grooves 32 are formed among the mounting plates 31; the force measuring piece 011 is a push-pull force meter, and the force measuring piece 011 is clamped and fixed in the fixing groove 32. One side of the force measuring piece 011, which is close to the second mounting seat 4, is provided with a force measuring head 0111 with a convex cross section, a T-shaped clamping groove 41 which is in sliding fit with the force measuring head 0111 is fixed at a position, which corresponds to the force measuring head 0111, on the second mounting seat 4 through a bolt, and the force measuring head 0111 is inserted into the T-shaped clamping groove 41.

Referring to fig. 2 and 4, the clamping assembly includes a clamping member 71 for clamping the fixing tube 11 and a supporting block 72 for supporting the tube 11. The clamping piece 71 comprises a clamping block 711, the clamping block 711 is a cube-shaped block body, and an installation groove 715 is formed in the upper side of the clamping block 711; two side walls of the mounting groove 715 are provided with pin holes 712, and pin shafts 713 are inserted into the pin holes 712; a threaded hole is formed in the upper side surface of the clamping block 711 at a position corresponding to the pin hole 712, a tightening bolt 714 is screwed into the threaded hole, and the end of the tightening bolt 714 tightens the pin 713. When the fixing device is used, one end of the sleeve 11, which is provided with the fixing hole 111, is erected in the mounting groove 715, the pin shaft 713 is inserted in the fixing hole 111, and then the abutting bolt 714 is screwed down for fixing.

The supporting block 72 is a cube-shaped block body, the supporting block 72 is provided with an installation groove 715 which is the same as the clamping block 711, the supporting block 72 is fixed on the workbench 2 through a bolt, and one end of the sleeve 11, which is far away from the fixing hole 111, is overlapped in the installation groove 715 of the supporting block 72. A clamping groove 42 is fixed on the second mounting seat 4 through a bolt, the clamping groove 42 is a block body which is provided with a convex-shaped groove in a penetrating way, and the driving end 121 of the screw rod 12 is clamped and mounted in the clamping groove 42.

A starting point sensor 8 is fixed on the workbench 2 corresponding to the initial position of the second mounting seat 4, an end point sensor 9 is arranged at the position corresponding to the end point of the second mounting seat 4, a controller 10 is further installed on one side of the workbench 2, and the starting point sensor 8, the end point sensor 9 and the driving piece 6 are all electrically connected to the controller 10.

The implementation principle of the push rod telescopic resistance test bed disclosed by the embodiment of the application is as follows: the force measuring part 011 is arranged between the first mounting seat 3 and the second mounting seat 4 by arranging the first mounting seat 3 and the second mounting seat 4 in a sliding way on the workbench 2. When the device is used, the sleeve 11 is fixed on the clamping component, the driving end 121 of the screw rod 12 is installed in the clamping groove 42 of the second installation seat 4, the driving part 6 is used for driving the first installation seat 3 to move along the guide rod 5 at a constant speed, the first installation seat 3 pushes the second installation seat 4 through the force measuring part 011 and pulls the screw rod 12 out of the sleeve 11, and the force value required for pulling out the screw rod 12 can be measured through the force measuring part 011; when the endpoint sensor 9 monitors the position of the second mounting seat 4, the endpoint sensor 9 transmits a signal to the controller 10, the controller 10 controls the driving part 6 to drive the first mounting seat 3 to move in the opposite direction, the force measuring part 011 can test a force value required for inserting the screw rod 12 into the sleeve 11, when the start point sensor 8 monitors the position of the second mounting seat 4, the start point sensor 8 transmits a signal to the controller 10, and the controller 10 controls the driver to stop acting.

In the process, a worker can judge whether the push rod 1 is qualified according to the data measured by the force measuring part 011, and then the tested push rod 1 is detached and replaced by the push rod 1 to be tested for continuous testing, so that the structure is simple, and the use is convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a push rod resistance test bench that stretches out and draws back which characterized in that: including workstation (2), it is provided with first mount pad (3) to slide on workstation (2), still be provided with the centre gripping subassembly and the drive that are used for centre gripping sleeve pipe (11) on workstation (2) drive piece (6) that first mount pad (3) removed, sleeve pipe (11) centre gripping is fixed on the centre gripping subassembly, the axial of sleeve pipe (11) with the moving direction of first mount pad (3) parallels, keep away from first mount pad (3) the one end slip of drive piece (6) is provided with second mount pad (4) that are used for lead screw (12) drive end (121), second mount pad (4) with first mount pad (3) sliding direction is unanimous, be provided with between first mount pad (3) and second mount pad (4) and be used for testing dynamometry piece (011) of power value each other.

2. The push rod telescopic resistance test bed according to claim 1, wherein: be provided with on first mount pad (3) and be used for the installation fixed slot (32) of dynamometry piece (011), dynamometry piece (011) is close to one side of second mount pad (4) is provided with dynamometry head (0111) that the cross-sectional profile is the type of dogbone, correspond on second mount pad (4) dynamometry head (0111) is provided with T shape draw-in groove (41).

3. The push rod telescopic resistance test bed according to claim 1, wherein: the workbench (2) is further provided with two guide rods (5) which are parallel to each other, the guide rods (5) are provided with two sliding blocks (51), and the first mounting seat (3) and the second mounting seat (4) are fixed on the two sliding blocks (51) respectively.

4. The push rod telescopic resistance test bed according to claim 1, wherein: the clamping assembly comprises a clamping piece (71) used for clamping the sleeve (11) and a supporting block (72) used for supporting one end, far away from the fixing hole (111), of the sleeve (11), mounting grooves (715) for placing the sleeve (11) are formed in the clamping piece (71) and the supporting block (72), and the opening directions of the mounting grooves (715) are consistent.

5. The push rod telescopic resistance test bed according to claim 4, wherein: the clamping piece (71) comprises a clamping block (711) provided with a mounting groove (715), a pin hole (712) penetrates through the side wall of the clamping block (711), a pin shaft (713) penetrates through the pin hole (712), the end part of the pin shaft (713) is inserted into the fixing hole (111), a clamping bolt (714) is further arranged on the clamping block (711), and the clamping bolt (714) is clamped on the side wall of the pin shaft (713).

6. The push rod telescopic resistance test bed according to claim 4, wherein: the second mounting seat (4) is provided with a clamping groove (42) used for mounting the driving end (121), and the clamping groove (42) is consistent with the opening direction of the mounting groove (715).

7. The push rod telescopic resistance test bed according to claim 1, wherein: and a starting point sensor (8) for monitoring the initial position of the second mounting seat (4) and an end point sensor (9) for monitoring the key position of the second mounting seat (4) are arranged on the workbench (2).

8. The push rod telescopic resistance test bed according to claim 1, wherein: the driving piece (6) is set to be a servo electric cylinder.