CN216487885U - Contact group assembling device - Google Patents

Abstract

The utility model discloses a contact group assembly quality, include: the device comprises a base, a guide rail assembly, a cylinder assembly and a contact group fixing assembly; the guide rail assembly comprises a linear guide rail, a grating ruler and a sliding platform, the linear guide rail is fixed on the bearing surface of the base, and the sliding platform is connected with the linear guide rail in a sliding manner; the fixed scale of the grating scale is arranged on the side surface of the linear guide rail, and the top surface of the movable scale of the grating scale is fixedly connected with the bottom surface of the sliding platform; the air cylinder assembly comprises a fixed frame, an air cylinder and a push block, the fixed frame is fixed on the bearing surface of the base, the main body part of the air cylinder is clamped on the fixed frame, a first piston rod and a second piston rod are respectively arranged on two end surfaces of the air cylinder, the first piston rod is connected with the sliding platform, and the second piston rod is connected with the push block; the contact group fixing component is fixed on the bearing surface of the base, the top of the contact group fixing component is provided with a limiting groove, and the limiting groove and the push block are correspondingly arranged. The utility model discloses implement measurement of efficiency and the measurement accuracy who has improved the contact group, reduced the manpower and improved machining efficiency.

Description

Contact group assembling device

Technical Field

The utility model relates to the field of machining, especially, relate to a contact group assembles device.

Background

The contact group is the core component of the fuse, and is mainly used for controlling the fuse circuit and the power supply of the timing lightning arrester, and directly influences whether the fuse acts reliably or not. The main indexes of the contact group are that the opening distance between two contact blades in the contact blades is 0.3 mm-0.5 mm, and the closing contact pressure is more than 1.5N.

The contact group of the fuse is fixed on the base body through a self-made screw. Before assembly, the contact piece set is first assembled. The technical specification requires that the total assembly height of the contact assembly components is 24.5 mm. The contact group component mainly comprises a screw, an insulating sleeve, a gasket, an insulating gasket, a contact group I, a contact group II, a contact group III, a contact spacer, a lug plate, an adjusting gasket and the like. The contact blade of different safers has different designs but the main technical indexes are the same.

During actual assembly, in order to ensure the contact blade disconnection distance and the closing contact pressure, the relative position sizes among the contact blade group I, the contact blade group II, the contact blade group III and among the contact blades need to be adjusted by increasing or decreasing the adjusting gaskets. Before the adjusting gaskets are used, an insulating paint spraying procedure is carried out, and the actual thickness of each batch of single adjusting gaskets is inconsistent. Sometimes, the contact piece group is required to be subjected to fine adjustment through a red copper adjusting gasket (with the thickness of 0.1mm), and the assembling position size of the contact piece group is manually measured by using a vernier caliper, so that the number and the thickness of the adjusting gaskets are determined, time and labor are wasted, and the measurement is inaccurate.

Aiming at the problems that the relative position of each contact piece group is difficult to measure, the opening distance and the closing contact pressure are difficult to determine and the operation is inconvenient in the assembly process of the contact piece group component of the fuse in the prior art, an effective solution is not available at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a contact group assembling device, after a cylinder is assembled on a fixed frame, piston rods at two ends respectively extend out of the fixed frame, a first piston rod at one end is connected with a guide rail component, a second piston rod at the other end is used for pushing and pressing a contact group clamped on a contact group fixed component, thus realizing the purposes of applying force and measuring at the same time,

in order to achieve the above object, the utility model provides a contact assembly device, include: the device comprises a base, a guide rail assembly, a cylinder assembly and a contact group fixing assembly; the guide rail assembly comprises a linear guide rail, a grating ruler and a sliding platform, the linear guide rail is fixed on the bearing surface of the base, and the sliding platform is connected with the linear guide rail in a sliding manner; the fixed scale of the grating scale is arranged on the side surface of the linear guide rail, and the top surface of the movable scale of the grating scale is fixedly connected with the bottom surface of the sliding platform; the air cylinder assembly comprises a fixing frame, an air cylinder and a push block, the fixing frame is fixed on the bearing surface of the base, a main body part of the air cylinder is clamped on the fixing frame, a first piston rod and a second piston rod are respectively arranged on two end surfaces of the air cylinder, the first piston rod is connected with the sliding platform, and the second piston rod is connected with the push block; the contact group fixing assembly is fixed on the bearing surface of the base, a limiting groove is formed in the top of the contact group fixing assembly, and the limiting groove and the push block are correspondingly arranged.

Further optionally, the guide rail assembly comprises two linear guide rails, four sliding blocks and a connecting plate; the two linear guide rails are symmetrically arranged on the bearing surface of the base in parallel; the top of each linear guide rail is connected with two sliding blocks in a sliding manner, and the bottom surface of the sliding platform is fixedly connected with the four sliding blocks; the end face of the sliding platform facing the air cylinder assembly and the end face of the movable scale of the grating scale facing the air cylinder assembly are jointly fixed on one side face of the connecting plate, and the first piston rod is fixed on the other side face of the connecting plate.

Further optionally, the cylinder assembly comprises a connecting member; one end of the connecting piece is fixed at the end part of the second piston rod, and the other end of the connecting piece is fixed with a push block which protrudes out of the end face of the connecting piece.

Further optionally, a U-shaped opening is formed at the connecting end of the connecting piece and the pushing block; the push block comprises a first fixing piece and a second fixing piece which are perpendicular to each other; the first fixing piece is arranged in the opening, and the plurality of pin shafts penetrate through the opening wall on one side of the opening, the first fixing piece and the opening wall on the other side of the opening and are screwed tightly through nuts; the second fixing piece is positioned on one side of the bottom of the connecting piece.

Further optionally, the contact group fixing assembly comprises a contact group fixing seat and a contact group fixing block; one end of the contact group fixing seat is fixed on the bearing surface of the base, and the other end of the contact group fixing seat is connected with the contact group fixing block; the contact set fixing block is provided with a limiting groove.

Further optionally, a first cushion block is connected between the linear guide rail and the bearing surface of the base.

Further optionally, a second cushion block is connected between the fixed length of the grating ruler and the bearing surface of the base.

Further optionally, a display screen is further fixed on the bearing surface of the base, and the display screen is electrically connected with the grating ruler.

The technical scheme has the following beneficial effects: the utility model discloses a set up the cylinder assembly and at the both sides of cylinder assembly respectively with the fixed subassembly of guide rail set, contact group that the cylinder assembly is connected, realize bulldozing contact group on one side, measure the purpose of contact group height and size on one side, saved the manual operation process, improved work efficiency. The linear guide rail and the grating ruler with higher precision are arranged, so that the measuring result is more accurate; the fixed subassembly of contact group has realized that the direction of each part of contact group is spacing, is convenient for increase and decrease adjusting shim.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a contact set configuration provided in the prior art;

fig. 2 is a schematic structural diagram of a contact set assembling apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a guide rail assembly provided by an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a cylinder assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a contact group fixing assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another view angle of the contact group fixing assembly according to the embodiment of the present invention.

Reference numerals: 1-fastening screw 2-contact piece group I3-contact piece group II 4-contact piece group III 5-adjusting shim 10-base 20-guide rail component 201-linear guide rail 202-sliding platform 203-sliding block 204-grating ruler 2041-fixed ruler 2042-moving ruler 205-connecting plate 30-cylinder component 301-fixed frame 302-cylinder 303-push block 304-first piston rod 305-second piston rod 306-connecting piece 40-contact group fixed component 401-contact group fixed seat 402-contact group fixed block 50-display screen 60-contact group

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.

Fig. 1 is a schematic structural diagram of a contact set 60 provided in the prior art, and as shown in fig. 1, the assembly position dimensions of the relative position relationship among a contact piece group i 2, a contact piece group ii 3, and a contact piece group iii 4 in the contact set 60 component are technically required to be (7.5), (2.4), and the position dimensions between spacer piece contact angles are 7.5 ± 0.075, but in order to ensure the contact piece opening distance and the contact piece closing pressure during actual assembly, the relative position dimensions among the contact piece group i, the contact piece group ii 3, the contact piece group iii 4, and among the contact pieces need to be adjusted by increasing or decreasing the adjusting shim 5.

An insulating gasket and an adjusting gasket 5 are assembled between each contact piece group, and the insulating gasket and the adjusting gasket 5 are made of the following materials: according to GB/T1303.1-1998, the thickness of the insulating gasket is 1mm +/-0.22, the thickness of the adjusting gasket 5 is 0.3 +/-0.07 mm and 0.5 +/-0.14 mm, the adjusting gasket 5 is sprayed with insulating paint before use, the actual thickness of each batch of single adjusting gasket 5 is inconsistent, and the height dimension of the adjusting gasket after screwing the fastening screw 1 is changed. Sometimes, fine adjustment is performed through a red copper adjusting shim 5 (with the thickness of 0.1mm), and the size of the assembling position of the contact piece set is manually measured by using a vernier caliper, so that the number and the thickness of the adjusting shims 5 are determined, and the method is time-consuming, labor-consuming and inaccurate in measurement.

In order to solve the above problem, an embodiment of the present invention provides a contact set assembling device, fig. 2 is the embodiment of the present invention provides a contact set assembling device's schematic structural diagram, as shown in fig. 2, the device includes: the contact group fixing device comprises a base 10, a guide rail assembly 20, a cylinder assembly 30 and a contact group fixing assembly 40; the guide rail assembly 20 comprises a linear guide rail 201, a grating ruler 204 and a sliding platform 202, wherein the linear guide rail 201 is fixed on the bearing surface of the base 10, and the sliding platform 202 is in sliding connection with the linear guide rail 201; the fixed scale 2041 of the grating scale 204 is arranged on the side surface of the linear guide rail 201, and the top surface of the movable scale 2042 of the grating scale 204 is fixedly connected with the bottom surface of the sliding platform 202; the cylinder assembly 30 comprises a fixed frame 301, a cylinder 302 and a push block 303, the fixed frame 301 is fixed on the bearing surface of the base 10, the main body part of the cylinder 302 is clamped on the fixed frame 301, the two end surfaces of the cylinder 302 are respectively provided with a first piston rod 304 and a second piston rod 305, the first piston rod 304 is connected with the sliding platform 202, and the second piston rod 305 is connected with the push block 303; the contact group fixing component 40 is fixed on the bearing surface of the base 10, and the top of the contact group fixing component is provided with a limit groove which is arranged corresponding to the push block 303.

As shown in fig. 2, the base 10 is a rectangular plate having a longitudinal shape, and the top surface and the bottom surface of the base 10 are both horizontal surfaces, and the base 10, the rail assembly 20, the cylinder assembly 30, and the contact group fixing assembly 40 are sequentially fixed to the top surface of the base 10 in the longitudinal direction.

The guide rail assembly 20 includes a linear guide rail 201, a grating ruler 204 and a sliding platform 202. The linear guide 201 is fixed on the carrying surface of the base 10, and is a longitudinal guide, and the length direction of the linear guide is consistent with the longitudinal direction of the base 10. The bottom surface of the slide table 202 is connected to the top portion of the linear guide 201, and can linearly reciprocate in the longitudinal direction of the linear guide 201. Fig. 3 is a schematic structural diagram of the guide rail assembly 20 provided by the embodiment of the present invention, as shown in fig. 3, a grating ruler 204 is disposed in the space between the sliding platform 202 and the base 10, the grating ruler 204 includes a movable ruler 2042 and a fixed ruler 2041 connected to each other, the movable ruler 2042 can move relative to the fixed ruler 2041, the fixed ruler 2041 is disposed near the linear guide rail 201, and the movable ruler 2042 is disposed on the side of the fixed ruler 2041. The top surface of movable ruler 2042 is connected to the bottom surface of sliding platform 202, so that movable ruler 2042 can move along with the movement of sliding platform 202.

The cylinder assembly 30 includes a fixed frame 301, a cylinder 302, and a push block 303. The fixing frame 301 is fixed on the bearing surface of the base 10 and is composed of two opposite sub-supports, and the cylinder 302 is clamped in a clamping space formed by the two sub-supports. Further, the end face of the cylinder 302 may be fixed to the opposite sub-mount end face by screws. As shown in fig. 2, a first piston rod 304 and a second piston rod 305 are further disposed at two ends of the cylinder 302, the first piston rod 304 and the second piston rod 305 respectively penetrate through the sub-supports at two sides, an end of the first piston rod 304 is connected with the sliding platform 202, an end of the second piston rod 305 is connected with a push block 303, and the shape and size of the push block 303 are adapted to the shape and size of the contact group 60.

As a preferred implementation mode, a double-rod double-acting cylinder 302 is selected to realize linear reciprocating motion, piston rods are arranged at two ends of the double-rod double-acting cylinder, screws QSn6.4-Y2M 3 are assembled with a base body through a contact group 60, according to GB/T3098.10 bolt, screw, stud and nut manufactured by non-ferrous metals with mechanical properties of fasteners, the yield strength deltas is found to be 340MPa, the nominal stress sectional area As is 5.03mm2, and according to a pretightening force formula: and F is 0.5 delta sAs, calculating to obtain the pretightening force F of a single screw as 855N, the total pretightening force as 2 multiplied by 855N as 1710N, selecting the type of the cylinder 302, keeping the whole device in a static state, generally selecting the load ratio as 0.5, selecting the cylinder diameter 100 of the cylinder 302, selecting the stroke of the cylinder 302 as 50mm according to the total height of the contact group 60 as 24.5mm, and adjusting the pressure regulating valve and the throttle valve arranged outside the cylinder 302 by considering the impact of the stroke terminal. The digital display grating ruler 204 has the stroke of 100 and the resolution of 5 mu m.

One end of the contact group fixing component 40 is fixed with the bearing surface of the base 10, and the other end is provided with a limit groove which is matched with the contact group 60 and is provided with a position corresponding to the position of the push block 303. When the contact set 60 is pre-assembled, it is placed in the retaining groove of the contact set securing assembly 40 and secured with screws. The air cylinder 302 drives the pushing block 303 connected with the second piston rod 305 to enter the limiting groove to push and press the pre-installed contact group 60, the first piston rod 304 at the other end drives the sliding platform 202 to move, the grating ruler 204 and the driven part are driven to test the pushing and pressing distance, and then the height condition of the contact group 60 is obtained, so that the pressure requirement during actual assembly of the contact group 60 is simulated.

The displacement is accurately measured before and after the adjusting shim 5 is increased and decreased by adopting a high-precision grating ruler 204(5 micrometers); the high-precision linear guide rail 201 is used as a movement track of the grating ruler 204, so that the stable movement of the grating ruler 204 is ensured; a double-rod double-acting air cylinder 302 is adopted, the air cylinder 302 adopts a pressure regulating valve and a speed regulating valve, the actual assembly stress state of the contact group 60 is simulated, the force application at the other end is realized, and the measurement at the other end is realized; the contact group fixing block 402 structure realizes the direction limitation of each part of the contact group, and is convenient for increasing and decreasing the adjusting gasket 5.

As an alternative embodiment, as shown in fig. 3, the guide rail assembly 20 includes two linear guide rails 201, four sliding blocks 203, and a connecting plate 205; the two linear guide rails 201 are symmetrically arranged on the bearing surface of the base 10 in parallel; the top of each linear guide rail 201 is connected with two sliding blocks 203 in a sliding manner, and the bottom surface of the sliding platform 202 is fixedly connected with the four sliding blocks 203; the end surface of the sliding platform 202 facing the cylinder assembly 30 and the end surface of the movable ruler 2042 of the grating ruler 204 facing the cylinder assembly 30 are fixed together on one side surface of the connecting plate 205, and the first piston rod 304 is fixed on the other side surface of the connecting plate 205.

As shown in fig. 3, the guide rail assembly 20 includes two linear guide rails 201, which are disposed symmetrically with respect to the center line of the base 10 in the longitudinal direction, two sliders 203 are disposed on each linear guide rail 201, and four sliders 203 are also disposed symmetrically with respect to the center line of the base 10 in the longitudinal direction. Each sliding block 203 is connected with the corresponding linear guide rail 201 in a sliding mode, and the sliding platform 202 is arranged on the top face of each sliding block 203 and fixedly connected with the four sliding blocks 203 through screws. When the sliding block 203 moves on the linear guide 201, the sliding platform 202 can be driven to move.

In a preferred embodiment, the linear guide rail 201 is made of an aluminum support optical axis high slide rail linear guide gauge and a matched slide block 203 (different types are selected according to the load weight).

The connecting plate 205 is used to connect the cylinder assembly 30 and the guide rail assembly 20, one surface of which is connected to the end surface of the movable scale 2042 of the grating scale 204 and the end surface of the sliding platform 202 on the same side, and the other surface opposite to the one surface is connected to the first piston rod 304 of the cylinder 302. When the first piston rod 304 moves, the movable ruler 2042 of the sliding platform 202 and the grating ruler 204 can be driven to move simultaneously, so as to achieve the purpose of measuring the distance.

As an alternative implementation, fig. 4 is a schematic structural diagram of a cylinder assembly 30 provided in an embodiment of the present invention, and as shown in fig. 4, the cylinder assembly 30 includes a connecting member 306; one end of the connecting piece 306 is fixed at the end of the second piston rod 305, and the other end is fixed with a pushing block 303, wherein the pushing block 303 protrudes out of the end surface of the connecting piece 306.

As shown in fig. 4, the cylinder assembly 30 further includes a connecting member 306, one end of the connecting member 306 is fixedly connected to the end of the second piston rod 305, and the other end is detachably connected to the pushing block 303, so that when the pushing block 303 needs to be replaced, the connecting member 306 can be conveniently detached and replaced.

In addition, the first piston rod 304 and the second piston rod 305 are fixed with tightening nuts for easy fixation.

As an alternative embodiment, the connecting end of the connecting member 306 and the pushing block 303 is provided with a "U" shaped opening; the pushing block 303 comprises a first fixing piece and a second fixing piece which are perpendicular to each other; the first fixing piece is arranged in the opening, and the plurality of pin shafts penetrate through the opening wall on one side of the opening, the first fixing piece and the opening wall on the other side of the opening and are screwed tightly through nuts; the second fixing plate is located at the bottom side of the connecting member 306.

As shown in fig. 4, a U-shaped opening is formed inside the end of the connecting member 306 connected to the pushing block 303. The push block 303 is generally "L" shaped and comprises two perpendicular securing tabs, which correspond to the configuration of the contact set 60. Wherein the first stator is fixed in the opening of the connecting piece 306 and the second stator is located outside the opening and corresponds to the fixed contact set 60.

Furthermore, a plurality of pins are provided in the embodiment, each pin sequentially passes through the opening wall on one side, the first fixing piece and the second opening wall from one side of the connecting piece 306, and the part of the pin passing through the second opening wall is fixed by a nut, so as to fix the pushing block 303 and the connecting piece 306. Therefore, the push block 303 can be prevented from longitudinally rotating in the pushing process, and the constraint of the degree of freedom is realized.

As an optional implementation manner, fig. 5 is a schematic structural diagram of a contact group fixing assembly 40 provided in an embodiment of the present invention, and as shown in fig. 5, the contact group fixing assembly 40 includes a contact group fixing base 401 and a contact group fixing block 402; one end of the contact group fixing seat 401 is fixed on the bearing surface of the base 10, and the other end is connected with the contact group fixing block 402; the contact set fixing block 402 is provided with a limiting groove.

As shown in fig. 5, the contact group fixing assembly 40 includes a contact group fixing base 401 and a contact group fixing block 402, wherein one end of the contact group fixing base 401 is fixed to the carrying surface of the base 10, the other end is provided with a placing platform, and the platform is provided with a vertical plate. Because the cylinder 302 is placed to meet the requirement of the central axis, the fixed seat is adopted to increase the high speed of the contact set 60 so that the contact set corresponds to the Zhongxing axis of the cylinder 302. The contact group fixing block 402 is placed on the platform, and one side of the contact group fixing block is detachably connected with a vertical plate on the platform. In order to meet the pushing requirement of the pushing block 303, the contact group fixing block 402 is provided with a limiting groove matched with both the contact group 60 and the pushing block 303, so that the pushing block 303 can push the contact group 60 without any obstacle.

Fig. 6 is a schematic structural view of another view angle of the contact group fixing assembly 40 according to the embodiment of the present invention, which is a top view of the contact group fixing assembly 40, and as shown in fig. 6, a longitudinal groove is formed on the top surface of the contact group fixing block 402, and corresponds to the first fixing piece, so as to satisfy the movement of the first fixing piece in the contact group fixing block 402.

As an alternative embodiment, a first cushion block is connected between the linear guide 201 and the bearing surface of the base 10.

After the air cylinder 302 is installed, the height of the guide rail is adjusted by adding the first cushion block according to the central shaft of the air cylinder 302. In order to maintain the motion smoothness of the grating ruler 204, the height dimension of the cushion block is controlled within 0.05mm precision, and the flatness is controlled within 0.012 mm.

As an optional embodiment, a second cushion block is connected between the fixed length 2041 of the linear scale 204 and the bearing surface of the base 10.

After the cylinder 302 is installed, a second cushion block is added to adjust the height of the fixed scale 2041 of the grating scale 204 according to the central shaft of the cylinder 302, and the sliding platform 202 is installed above the movable scale 2042 of the grating scale 204 and used for being connected with the cylinder 302. In order to maintain the motion smoothness of the grating ruler 204, the height dimension of the cushion block is controlled within 0.05mm precision, and the flatness is controlled within 0.012 mm.

As an alternative embodiment, as shown in fig. 1, a display screen 50 is further fixed on the bearing surface of the base 10, and the display screen 50 is electrically connected to the grating scale 204.

As shown in fig. 1, a display screen 50 is further fixed on the carrying surface of the base 10, and the display screen 50 is electrically connected to the grating ruler 204 to visually display the measurement result of the grating ruler 204.

The use process of the device is as follows: the contact group 60 is preassembled on the contact group fixing assembly 40, the air cylinder 302 drives the pushing block 303 to push and press the contact group 60, at the moment, due to the forward movement of the first piston rod 304, the second piston rod 305 also moves forwards in the same direction for the same distance to drive the grating ruler 204 to move, so that the height size of the contact group 60 at the moment is measured, the number of the adjusting gaskets 5 of the contact group 60 is adjusted according to the preset requirement and the measuring result, and the process is repeated until the preset requirement is met.

The technical scheme has the following beneficial effects: the utility model discloses a set up cylinder assembly 30 and the guide rail set 20 that is connected with cylinder assembly 30 respectively in cylinder assembly 30's both sides, contact group fixed subassembly 40, realize bulldozing contact group 60 on one side, measure the purpose of contact group 60 height dimensions on one side, saved the manual operation process, improved work efficiency. The linear guide rail 201 and the grating ruler 204 with higher precision are arranged, so that the measurement result is more accurate; the contact group fixing assembly 40 realizes the direction limitation of each part of the contact group 60, and is convenient for increasing and decreasing the adjusting gasket 5.

The above embodiments of the present invention provide further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only embodiments of the present invention, and are not limited to the protection scope of the present invention, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A contact assembly apparatus, comprising:

the device comprises a base, a guide rail assembly, a cylinder assembly and a contact group fixing assembly;

the guide rail assembly comprises a linear guide rail, a grating ruler and a sliding platform, the linear guide rail is fixed on the bearing surface of the base, and the sliding platform is connected with the linear guide rail in a sliding manner;

the fixed scale of the grating scale is arranged on the side surface of the linear guide rail, and the top surface of the movable scale of the grating scale is fixedly connected with the bottom surface of the sliding platform;

the air cylinder assembly comprises a fixing frame, an air cylinder and a push block, the fixing frame is fixed on the bearing surface of the base, the main body part of the air cylinder is clamped on the fixing frame, a first piston rod and a second piston rod are respectively arranged on two end surfaces of the air cylinder, the first piston rod is connected with the sliding platform, and the second piston rod is connected with the push block;

the contact group fixing component is fixed on the bearing surface of the base, the top of the contact group fixing component is provided with a limiting groove, and the limiting groove and the push block are correspondingly arranged.

2. The contact assembly-assembling device of claim 1, wherein:

the guide rail assembly comprises two linear guide rails, four sliding blocks and a connecting plate;

the two linear guide rails are symmetrically arranged on the bearing surface of the base in parallel;

the top of each linear guide rail is connected with two sliding blocks in a sliding manner, and the bottom surface of the sliding platform is fixedly connected with the four sliding blocks;

the end face of the sliding platform facing the air cylinder assembly and the end face of the movable scale of the grating scale facing the air cylinder assembly are jointly fixed on one side face of the connecting plate, and the first piston rod is fixed on the other side face of the connecting plate.

3. The contact assembly-assembling device of claim 1, wherein:

the cylinder assembly includes a connector;

one end of the connecting piece is fixed at the end part of the second piston rod, and the other end of the connecting piece is fixed with a push block which protrudes out of the end face of the connecting piece.

4. The contact set assembly device of claim 3, wherein:

the connecting end of the connecting piece and the push block is provided with a U-shaped opening;

the push block comprises a first fixing piece and a second fixing piece which are perpendicular to each other;

the first fixing piece is arranged in the opening, and the plurality of pin shafts penetrate through the opening wall on one side of the opening, the first fixing piece and the opening wall on the other side of the opening and are screwed tightly through nuts;

the second fixing piece is positioned on one side of the bottom of the connecting piece.

5. The contact set assembly device of claim 1, wherein:

the contact group fixing component comprises a contact group fixing seat and a contact group fixing block;

one end of the contact group fixing seat is fixed on the bearing surface of the base, and the other end of the contact group fixing seat is connected with the contact group fixing block;

the contact set fixing block is provided with a limiting groove.

6. The contact set assembly device of claim 1, wherein:

and a first cushion block is connected between the linear guide rail and the bearing surface of the base.

7. The contact assembly-assembling device of claim 1, wherein:

and a second cushion block is connected between the fixed length of the grating ruler and the bearing surface of the base.

8. The contact assembly-fitting device according to claim 1, wherein;

and a display screen is further fixed on the bearing surface of the base and is electrically connected with the grating ruler.

Images