Precise assembly detection device for lead screw

Abstract

The utility model discloses a lead screw precision assembly detection device, which comprises a platform base, a bottom plate fixed at the top of the platform base, and a plurality of linear guide rails fixed at the top and one side of the bottom plate, the tops of the plurality of linear guide rails are slidably connected with a plurality of high-precision dial indicators. Through cooperation of the fixing mechanism, the displacement mechanism and the displacement table supporting mechanism, the position of the lead screw can be conveniently and rapidly adjusted to adapt to high-precision displacement tables and lead screws of different specifications, and the high-precision dial gauge can slide on the linear guide rail in a full-stroke mode to measure the precise displacement tables and lead screws of different specifications. Up-down adjustment and left-right adjustment are achieved through the micrometer heads, the mode that detection and assembly are conducted at the same time is adopted, detection is completed after assembly is completed, and the assembly efficiency and precision are improved, so that the displacement table lead screw assembly time can be shortened, the efficiency is improved, the displacement table assembly precision is improved, and the use precision of the high-precision displacement table is guaranteed; and multi-specification sharing can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of assembly detection, especially relates to a precision screw rod assembly detection device. BACKGROUND

[0002] High-precision displacement table is widely applied in automation industry, and the assembly of core component screw rod determines the performance of displacement table to a great extent, in order to ensure the precision and reliability of displacement table, the performance requirement of screw rod assembly detection device is higher and higher.

[0003] 1. The existing screw rod assembly detection device generally has a long assembly time and low efficiency.

[0004] 2. The existing screw rod assembly detection device has low assembly precision and cannot completely guarantee the use precision of high-precision displacement table.

[0005] 3. The existing screw rod assembly detection device cannot be shared by multiple specifications.

[0006] Therefore, in view of the above problems, it is urgent to improve the original screw rod assembly detection device. SUMMARY

[0007] The utility model overcomes the insufficient prior art and provides a precision screw rod assembly detection device.

[0008] To achieve the above purpose, the utility model adopts the technical scheme of a precision screw rod assembly detection device, which comprises a platform base, a bottom plate fixed on the top of the platform base, and a plurality of linear guides fixed on the top and one side of the bottom plate.

[0009] The top of the linear guide is slidably connected with a fixing mechanism, a displacement mechanism and a displacement table support mechanism, the displacement table support mechanism is located between the fixing mechanism and the displacement mechanism, the top of the displacement table support mechanism is provided with a high-precision displacement table, and the inner side of the high-precision displacement table is rotatably connected with a screw rod.

[0010] The displacement table support mechanism is used for adjusting the Z-axis direction of the high-precision displacement table, and the fixing mechanism and the displacement mechanism are used for realizing the movement of X and Z-axis directions and abutting one end of the screw rod.

[0011] In a preferred embodiment of the present invention, the fixing mechanism includes: a first slider slidably connected to the top of the linear guide rail, a first XZ axis displacement stage and a first fixed seat sequentially fixed to the top of the first slider, and a first ejector pin installed on one side of the first fixed seat; one end of the first ejector pin abuts against one end of the lead screw, and the first XZ axis displacement stage is used to manually drive the first ejector pin to move in the X and Z axis directions.

[0012] In a preferred embodiment of the present invention, the fixing mechanism further includes: a buffer seat fixed to the top of the base plate and located on one side of the linear guide rail; one side of the buffer seat is fixed to one side of the first fixing seat by a telescopic rod.

[0013] In a preferred embodiment of the present invention, the displacement mechanism includes: a second slider slidably connected to the top of the linear guide rail, a second XZ axis displacement stage and a second fixed seat sequentially fixed to the top of the second slider, and a second ejector pin disposed on one side of the second fixed seat; one end of the second ejector pin abuts against one end of the lead screw, and the second XZ axis displacement stage is used to manually drive the second ejector pin to achieve movement in the X and Z axis directions.

[0014] In a preferred embodiment of the present invention, the displacement mechanism further includes: a handwheel threadedly connected to one side of the second fixed seat; one end of the handwheel is fixed to the second ejector pin.

[0015] In a preferred embodiment of this utility model, the displacement stage support mechanism includes: a third slider slidably connected to the top of the linear guide rail, a Z-axis manual displacement stage and a support plate fixed sequentially to the top of the third slider, and a plurality of micrometer heads installed on one side of the support plate; one end of the plurality of micrometer heads is in contact with the high-precision displacement stage.

[0016] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0017] (1) This utility model provides a precision assembly and testing device for lead screws. Through the cooperation of a fixing mechanism, a displacement mechanism and a displacement stage support mechanism, the position of the lead screw can be adjusted conveniently and quickly to adapt to high-precision displacement stages and lead screws of different specifications. The high-precision dial indicator can slide on the linear guide rail for the entire stroke to measure precision displacement stages and lead screws of different specifications. Up and down and left and right adjustments are achieved through the micrometer head, and the minimum adjustment amount can reach 10μm, which effectively ensures the assembly accuracy. The device adopts a method of testing and assembling at the same time. The testing is completed when the assembly is completed, which improves the efficiency and accuracy of the assembly. This can shorten the assembly time of the displacement stage lead screw, improve efficiency, improve the assembly accuracy of the displacement stage, ensure the use accuracy of the high-precision displacement stage, and has the feature of being usable by multiple specifications. Attached Figure Description

[0018] The utility model is further explained in connection with the drawings and embodiments below;

[0019] Figure 1 It is the perspective structural diagram of preferred embodiment of the utility model;

[0020] Figure 2 It is the front view structural diagram of preferred embodiment of the utility model;

[0021] Figure 3 It is the side view structural diagram of preferred embodiment of the utility model;

[0022] Figure 4 It is the top view structural diagram of preferred embodiment of the utility model;

[0023] In the drawing: 1, platform base; 2, bottom plate; 3, fixed mechanism; 31, first XZ axle displacement table; 32, first thimble; 4, displacement mechanism; 41, hand wheel; 5, displacement table support mechanism; 51, Z axle manual displacement table; 52, differential head; 53, support plate; 6, high-precision micrometer; 7, linear guide rail; 8, high-precision displacement table; 9, screw rod. Specific implementation

[0024] The utility model will be explained in further detail in connection with the drawings and embodiments, these drawings are all simplified schematic diagram, just with the schematic way to illustrate the basic structure of the utility model, therefore it just shows the constitution related to the utility model.

[0025] As Figures 1-4 Shown, a screw rod 9 precision assembly detection device, include: platform base 1, the bottom plate 2 of being fixed in the top of platform base 1 and the linear guide rail 7 of being fixed in the top and one side of bottom plate 2;The top of several linear guide rails 7 is slidably connected with several high-precision micrometers 6;The top of linear guide rail 7 is slidably connected with fixed mechanism 3, displacement mechanism 4 and displacement table support mechanism 5, displacement table support mechanism 5 is between fixed mechanism 3 and displacement mechanism 4, the top of displacement table support mechanism 5 is installed with high-precision displacement table 8, the inner side of high-precision displacement table 8 is rotatably connected with screw rod 9;Displacement table support mechanism 5 is used to adjust the Z axle direction of high-precision displacement table 8, and fixed mechanism 3 and displacement mechanism 4 are all used to realize the movement of X and Z axle direction and realize the resistance of one end of screw rod 9.

[0026] It should be noted that the number of linear guide rails 7 is preferably three, arranged in parallel, and the number of high-precision micrometers 6 is preferably two, located on the two side linear guide rails 7, and the fixing mechanism 3, the displacement mechanism 4 and the displacement table supporting mechanism 5 are located on the middle linear guide rail 7; the bottom plate 2 is fixed on the platform base 1, the linear guide rails 7 are installed on the corresponding positions of the bottom plate 2, the fixing mechanism 3, the displacement mechanism 4 and the displacement table supporting mechanism 5 are installed on the linear guide rails 7, and the high-precision micrometers 6 are locked on the linear guide rails 7 by magnetic attraction. Through the cooperation of the fixing mechanism 3, the displacement mechanism 4 and the displacement table supporting mechanism 5, the position of the lead screw 9 can be adjusted conveniently and quickly to adapt to different specifications of the high-precision displacement table 8 and the lead screw 9. The high-precision micrometer 6 can slide on the linear guide rail 7 for full stroke to measure different specifications of the precision displacement table and the lead screw 9. Up and down and left and right adjustments are realized by the differential head 52, and the minimum adjustment amount can reach 10pm, effectively ensuring the assembly precision. The assembly is completed and the detection is completed, improving the assembly efficiency and precision, thereby shortening the assembly time of the displacement table lead screw 9, improving the efficiency, improving the assembly precision of the displacement table, ensuring the use precision of the high-precision displacement table 8, and realizing the characteristics of multi-specification sharing.

[0027] In some embodiments, the fixing mechanism 3 comprises: a first sliding block slidingly connected to the top of the linear guide rail 7, a first XZ-axis displacement table 31 and a first fixed seat fixed in sequence on the top of the first sliding block, and a first thimble 32 installed on one side of the first fixed seat; one end of the first thimble 32 abuts against one end of the lead screw 9, and the first XZ-axis displacement table 31 is used to manually drive the first thimble 32 to move in the X and Z axial directions.

[0028] It should be noted that through the cooperation of the first sliding block, the fixing mechanism 3 can be slidingly installed on the top of the linear guide rail 7, and under the cooperation of the first XZ-axis displacement table 31, the first fixed seat and the first thimble 32 on the top can be manually driven to move in the X and Z axial directions, so as to abut the first thimble 32 against one end of the lead screw 9, facilitating the assembly and detection of the lead screw 9.

[0029] In some embodiments, the fixing mechanism 3 further comprises: a buffer seat fixed on the top of the bottom plate 2 and located on one side of the linear guide rail 7; one side of the buffer seat is fixed to one side of the first fixed seat through a telescopic rod; through the cooperation of the buffer seat, the position of the fixing mechanism 3 on the linear guide rail 7 can be limited, and the displacement table supporting mechanism 5 can be buffered when moving towards the fixing mechanism 3.

[0030] In some embodiments, the displacement mechanism 4 comprises: a second sliding block slidingly connected on top of the linear guide rail 7, a second XZ-axis displacement table and a second fixed seat fixed in sequence on top of the second sliding block, and a second top pin arranged on one side of the second fixed seat; one end of the second top pin is in abutment with one end of the lead screw 9, and the second XZ-axis displacement table is used to manually drive the second top pin to move in the X and Z axial directions.

[0031] It should be noted that, through the cooperation of the second sliding block, the displacement mechanism 4 can be slidingly installed on top of the linear guide rail 7, and under the cooperation of the second XZ-axis displacement table, the second fixed seat and the second top pin on top can be manually driven to move in the X and Z axial directions, so as to drive the second top pin to abut the other end of the lead screw 9, and the first top pin 32 to abut the lead screw 9 coaxially, facilitating the assembly and detection of the lead screw 9.

[0032] In some embodiments, the displacement mechanism 4 further comprises: a hand wheel 41 threadedly connected on one side of the second fixed seat; one end of the hand wheel 41 is fixed with the second top pin; through the arrangement of the hand wheel 41, since the hand wheel 41 is threadedly connected on one side of the second fixed seat, rotating the hand wheel 41 makes the hand wheel 41 screw into the second fixed seat, which can push the second top pin to move towards the lead screw 9, and can adjust the concentricity of the lead screw 9 within the required range.

[0033] In some embodiments, the displacement table support mechanism 5 comprises: a third sliding block slidingly connected on top of the linear guide rail 7, a Z-axis manual displacement table 51 and a support plate 53 fixed in sequence on top of the third sliding block, and a plurality of differential heads 52 installed on one side of the support plate 53; one end of the plurality of differential heads 52 is in abutment with the high-precision displacement table 8.

[0034] It should be noted that, through the cooperation of the third sliding block, the displacement table support mechanism 5 can be slidingly installed on top of the linear guide rail 7, and through the cooperation of the Z-axis manual displacement table 51, the support plate 53 on top and the high-precision displacement table 8 can be driven to move vertically, and through the arrangement of the plurality of differential heads 52, the position of the high-precision displacement table 8 can be accurately adjusted, so as to meet the adjustment requirements during assembly and detection.

[0035] The utility model discloses a high precision displacement platform 8 is placed to support board 53 when using, the screw of each part of high precision displacement platform 8 is loose state at this moment, the first needle 32 of using fixed mechanism 3 is pressed against screw rod 9 one end, the second needle of adjusting displacement mechanism 4 is pressed against screw rod 9 the other end, and the first needle 32 and the second needle of both ends realize the tightness, and the measuring head of high precision micrometer 6 is hit on the outer circle of screw rod 9, and hand wheel 41 is rotated, and the displacement mechanism 4 and fixed mechanism 3 and displacement platform support mechanism 5 are adjusted and moved up and down simultaneously, make the concentricity and runout of screw rod 9 in the required range, after adjusting the position of screw rod 9, the measuring head of high precision micrometer 6 is hit to the side and upper surface of high precision displacement platform 8, hand wheel 41 is rotated, and the position of differential head 52 is adjusted and moved high precision displacement platform 8, make the pitch value and the deflection value of high precision displacement platform 8 in the required range, and lock the screw of each part of high precision displacement platform 8, at this moment, high precision displacement platform 8 assembly is completed, the whole structure design, embodies the precision assembly detection device of this screw rod 9 can realize shortening displacement platform screw rod 9 assembly time, improves the efficiency, improves the assembly accuracy of displacement platform, guarantees the use precision of high precision displacement platform 8, and the characteristics that many specifications can be commonly used.

[0036] The above is according to the ideal embodiment of the utility model for the enlightenment, through the above-mentioned description, for the person skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be considered as limiting the claims involved.

[0037] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and the person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that the person skilled in the art can understand.

Claims

1. A precision assembly and testing device for lead screws, characterized in that, Include: Platform base (1), fixed on the top of the platform base (1) bottom plate (2), and fixed on the top and one side of several linear guide (7); The top of several linear guide (7) is slidably connected with several high precision dial gauge (6); The top of the linear guide (7) is slidably connected with fixing mechanism (3), displacement mechanism (4) and displacement table supporting mechanism (5), the displacement table supporting mechanism (5) is located between the fixing mechanism (3) and the displacement mechanism (4), the top of the displacement table supporting mechanism (5) is provided with high precision displacement table (8), the inner side of the high precision displacement table (8) is rotatably connected with lead screw (9); The displacement table supporting mechanism (5) is used for adjusting the Z axis direction of the high precision displacement table (8), the fixing mechanism (3) and the displacement mechanism (4) are used for realizing the movement of X and Z axis directions and realizing the abutment of one end of the lead screw (9).

2. The precision assembly detection device for a lead screw (9) according to claim 1, characterized in that: The fixing mechanism (3) comprises: a first sliding block slidably connected on the top of the linear guide (7), a first XZ axis displacement table (31) and a first fixed seat fixed on the top of the first sliding block in turn, and a first stylus (32) installed on one side of the first fixed seat; One end of the first stylus (32) is in abutment with one end of the lead screw (9), and the first XZ axis displacement table (31) is used for manually driving the first stylus (32) to realize the movement of X and Z axis directions.

3. The precision assembly detection device for a lead screw (9) according to claim 2, characterized in that: The fixing mechanism (3) further comprises: a buffer seat fixed on the top of the bottom plate (2) and located on one side of the linear guide (7); One side of the buffer seat is fixed with one side of the first fixed seat through the telescopic rod.

4. The precision assembly detection device for a lead screw (9) according to claim 1, characterized in that: The displacement mechanism (4) comprises: a second sliding block slidably connected on the top of the linear guide (7), a second XZ axis displacement table and a second fixed seat fixed on the top of the second sliding block in turn, and a second stylus provided on one side of the second fixed seat; One end of the second stylus is in abutment with one end of the lead screw (9), and the second XZ axis displacement table is used for manually driving the second stylus to realize the movement of X and Z axis directions.

5. The precision assembly detection device for a lead screw (9) according to claim 4, characterized in that: The displacement mechanism (4) further comprises: a hand wheel (41) threadedly connected on one side of the second fixed seat; One end of the hand wheel (41) is fixed with the second stylus.

6. The precision assembly detection device for a lead screw (9) according to claim 1, characterized in that: The displacement table supporting mechanism (5) comprises: a third sliding block slidably connected on the top of the linear guide (7), a Z axis manual displacement table (51) and a supporting plate (53) fixed on the top of the third sliding block in turn, and a plurality of differential heads (52) installed on one side of the supporting plate (53); One end of the plurality of differential heads (52) is in contact with the high precision displacement table (8).

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