Durability detection device for ball screw

Abstract

The utility model relates to a ball screw durability detection device, which comprises a driving mechanism, a chuck, a nut fixing assembly, a sliding block and a sliding rail, and is characterized in that the driving mechanism is connected with the chuck and drives the chuck to rotate; the nut fixing assembly and the sliding block are fixedly installed together, and the sliding block is connected to the sliding rail in a sliding mode. A lead screw nut is detachably and fixedly clamped in the nut fixing assembly. One end of a ball screw to be detected is fixedly clamped by the chuck, the other end of the ball screw to be detected is screwed into a screw nut in the nut fixing assembly, and the screw nut is in threaded connection with the ball screw. The driving mechanism drives the chuck to rotate, the chuck drives the ball screw to rotate, the ball screw drives the lead screw nut to move back and forth on the ball screw, and the lead screw nut drives the nut fixing assembly and the sliding block to move back and forth on the sliding rail in the reciprocating movement process. Therefore, the durability of the ball screw can be detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device field, concretely relates to a ball screw durability detection device. BACKGROUND

[0002] Ball screw needs to be detected after reproduction, and in the prior art, ball screw is generally detected by a durability detection device. In a Chinese patent application with the application number CN202310851031.7, a high-precision ball screw with wear degree detection function is disclosed, which comprises a ball screw body, a sealing cover body arranged on one side of the installation track, a rotating screw rotatably connected in the sealing cover body, the rotating screw extends outward through the sealing cover body at one end, and is connected with a control motor through gear transmission. A detection device is sleeved on the ball screw, the detection device is connected with the installation track through a limiting sliding part, the detection device is connected with the rotating screw through a carrying part penetrating into the sealing cover body, the detection device comprises a front-end detection part for detecting the precision of the screw nut block and a rear-end detection part for detecting the precision of the ball screw thread groove. The invention detects the position of the screw nut block in the ball screw through the front-end detection part, detects the ball screw thread groove through the rear-end detection part, obtains abnormal data of the ball screw thread groove precision, and solves the precision problem of the ball screw accordingly. Although the ball screw detection device disclosed in the patent application can detect the wear degree of the ball screw, it cannot detect the durability (service life) of the ball screw, and there is a lack of detection device that can directly detect the durability of the ball screw on the market. SUMMARY

[0003] The utility model aims at solving the shortcomings in the prior art and provides a ball screw durability detection device.

[0004] In order to achieve the above object, the utility model discloses the following technical scheme: a ball screw durability detection device, include: driving mechanism, chuck, nut fixed assembly, sliding block, sliding rail, the driving mechanism is connected with the chuck, the driving mechanism drives the chuck rotation, the nut fixed assembly and the sliding block fixed installation are together, the sliding block is slidably connected in the sliding rail, and the sliding block is slid back and forth on the sliding rail, the nut fixed assembly is detachably fixed and clamped with screw nut, one end of the ball screw to be detected is fixed and clamped by the chuck, the other end of the ball screw to be detected is screwed into the screw nut in the nut fixed assembly, and the screw nut is threadedly connected with the ball screw, so that the driving mechanism drives the chuck rotation, the chuck drives the ball screw rotation, the ball screw drives the screw nut to move back and forth on the ball screw, and the screw nut drives the nut fixed assembly and the sliding block to move back and forth on the sliding rail during reciprocating movement, so as to detect the durability of the ball screw.

[0005] Preferably, the nut fixed assembly comprises a first clamping piece and a second clamping piece, and the first clamping piece and the second clamping piece are detachably fixedly connected together.

[0006] Preferably, the first clamping piece is provided with a first clamping groove, the second clamping piece is provided with a second clamping groove, the first clamping groove of the first clamping piece and the second clamping groove of the second clamping piece are butted, so as to form a larger clamping space, and the screw nut is fixedly clamped in the clamping space.

[0007] Preferably, the first clamping piece comprises a first clamping piece body, a first clamping end and a second clamping end, the first clamping end protrudes from the first clamping piece body by a preset height, the second clamping end protrudes from the first clamping piece body by a preset height, and the first clamping end and the second clamping end are fixedly connected to the first clamping piece body, the first clamping end and the second clamping end have a preset distance therebetween, so that the first clamping end, the second clamping end and the first clamping piece body together enclose the first clamping groove.

[0008] Preferably, the second clamping member comprises a second clamping member body, a first protruding column and a second protruding column, the first protruding column protrudes from the second clamping member body by a preset height, the second protruding column protrudes from the second clamping member body by a preset height, and the first protruding column and the second protruding column are fixedly connected to the second clamping member body; the first protruding column and the second protruding column have a preset distance therebetween, so that the first protruding column, the second protruding column and the second clamping member body collectively enclose the second clamping groove.

[0009] Preferably, the inner wall of the second clamping groove of the second clamping member is provided with a first limiting plane and a second limiting plane; the first clamping end of the first clamping member is provided with a first butt joint end face, and the second clamping end of the first clamping member is provided with a second butt joint end face; when the first clamping member and the second clamping member are fixedly installed together, the first butt joint end face on the first clamping end of the first clamping member butts against the first limiting plane of the second clamping member, and the second butt joint end face on the second clamping end of the first clamping member butts against the second limiting plane of the second clamping member, so as to prevent the clamping space after the butt joint of the first clamping groove and the second clamping groove from continuing to shrink.

[0010] Preferably, the first clamping member has a first connecting end and a second connecting end, the first connecting end and the second connecting end protrude from the first clamping member body of the first clamping member by a preset length, and the first connecting end, the second connecting end and the first clamping member body are fixedly connected together; the first connecting end, the second connecting end on the first clamping member and the second clamping member are fixedly connected together in a bolt connection or screw connection manner.

[0011] Preferably, the second clamping member further comprises a third connecting end and a fourth connecting end, the third connecting end and the fourth connecting end protrude outward from the second clamping member body by a preset length, and the third connecting end and the fourth connecting end are fixedly connected to the second clamping member body; the third connecting end, the fourth connecting end and the sliding block are fixedly installed together in a bolt connection or screw connection manner, so that the second clamping member and the sliding block are fixedly installed together in a detachable manner.

[0012] Preferably, it further comprises a support bottom plate, the sliding rail is fixedly installed on the support bottom plate, and the driving mechanism is fixedly installed on the support bottom plate.

[0013] The ball screw durability detection device provided by the application has the advantages that the ball screw durability detection device has simple structure and simple detection method, the driving mechanism drives the chuck to rotate, the chuck drives the ball screw to rotate, the ball screw drives the screw nut to move back and forth on the ball screw rapidly, and the working process of the ball screw is simulated, so that the durability of the ball screw can be detected in a short time. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A structural schematic view of a ball screw durability detection device is provided in the application.

[0015] Figure 2 For Figure 1 A structural schematic view of a ball screw durability detection device is provided in the application.

[0016] Figure 3 For Figure 1 A structural schematic view of a ball screw durability detection device is provided in the application. DETAILED DESCRIPTION

[0017] The application will be described in further detail below with specific embodiments and drawings. In different embodiments, similar elements are marked with similar element numbers. In the following embodiments, many details are described in order to make the application better understood. However, those skilled in the art can easily recognize that some features can be omitted or replaced by other elements, materials or methods in different cases. In some cases, some operations related to the application are not shown or described in the specification in order to avoid the core part of the application being overwhelmed by too much description, and it is not necessary to describe these related operations in detail for those skilled in the art according to the description in the specification and general technical knowledge in the art.

[0018] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be sequentially adjusted or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing one embodiment, and do not mean that the composition and / or order is necessary.

[0019] In this paper, the serial numbers of components, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "coupling" in the application include direct and indirect connection (coupling) unless otherwise specified.

[0020] Please refer to Figures 1-3The application provides a ball screw durability detection device (referred to as "the detection device" below), which comprises a driving mechanism 1, a chuck 2, a nut fixing assembly 3, a sliding block 4 and a sliding rail 5, the driving mechanism 1 is connected with the chuck 2, and the driving mechanism 1 drives the chuck 2 to rotate; the nut fixing assembly 3 and the sliding block 4 are fixedly installed together, the sliding block 4 is slidably connected to the sliding rail 5, so that the sliding block 4 slides back and forth on the sliding rail 5; the screw nut 8 is detachably fixed and clamped in the nut fixing assembly 3; one end of the ball screw 7 to be detected is fixed and clamped by the chuck 2, the other end of the ball screw 7 to be detected is screwed into the screw nut 8 in the nut fixing assembly 3, and the screw nut 8 and the ball screw 7 are threadedly connected; so that the driving mechanism 1 drives the chuck 2 to rotate, the chuck 2 drives the ball screw 7 to rotate, the ball screw 7 drives the screw nut 8 to move back and forth on the ball screw 7, and the screw nut 8 drives the nut fixing assembly 3 and the sliding block 4 to move back and forth on the sliding rail 5 in the process of reciprocating movement, so as to detect the durability of the ball screw 7. It should be noted that the specific structure of the driving mechanism 1 and the chuck 2 is not shown in the drawings of the application, but for those skilled in the art, the structure of the driving mechanism 1 and the chuck 2 belongs to the prior art, for example, the rotating driving part 6 and the first three-jaw chuck 4 are disclosed in the patent with the application number CN202322591406.9. The rotating driving part 4 in the patent corresponds to the driving mechanism 1 in the application, the first three-jaw chuck 4 corresponds to the chuck 2 in the application, and the driving mechanism 1 and the chuck 2 in the application can be designed according to the corresponding parts in the patent.

[0021] In an embodiment of the application, please refer to Figures 2-3 The nut fixing assembly 3 comprises a first clamping piece 31 and a second clamping piece 32, the first clamping piece 31 and the second clamping piece 32 are detachably fixedly connected together, and the screw nut 8 is detachably fixed and clamped between the first clamping piece 31 and the second clamping piece 32.

[0022] In an embodiment of the application, please refer to Figures 2-3 The first clamping piece 31 is provided with a first clamping groove 310, the second clamping piece 32 is provided with a second clamping groove 320, the first clamping groove 310 of the first clamping piece 31 and the second clamping groove 320 of the second clamping piece 32 are butted, so as to form a larger clamping space, and the screw nut 8 is fixed and clamped in the clamping space.

[0023] In an embodiment of the present application, the first clamping member 31 comprises a first clamping member body 311, a first clamping end 312 and a second clamping end 313, the first clamping end 312 protrudes from the first clamping member body 311 by a preset height, the second clamping end 313 protrudes from the first clamping member body 311 by a preset height, and the first clamping end 312 and the second clamping end 313 are fixedly connected to the first clamping member body 311; the first clamping end 312 and the second clamping end 313 have a preset distance therebetween, so that the first clamping end 312, the second clamping end 313 and the first clamping member body 311 together enclose the first clamping groove 310.

[0024] In an embodiment of the present application, the second clamping member 32 comprises a second clamping member body 321, a first protruding column 322 and a second protruding column 323, the first protruding column 322 protrudes from the second clamping member body 321 by a preset height, the second protruding column 323 protrudes from the second clamping member body 321 by a preset height, and the first protruding column 322 and the second protruding column 323 are fixedly connected to the second clamping member body 321; the first protruding column 322 and the second protruding column 323 have a preset distance therebetween, so that the first protruding column 322, the second protruding column 323 and the second clamping member body 321 together enclose the second clamping groove 320.

[0025] In an embodiment of the present application, please refer to Figure 3 , the inner wall of the second clamping groove 320 of the second clamping member 32 is provided with a first limiting plane 324 and a second limiting plane 325; the first clamping end 312 of the first clamping member 31 is provided with a first butt joint end face 3121, and the second clamping end 313 of the first clamping member 31 is provided with a second butt joint end face 3131; when the first clamping member 31 and the second clamping member 32 are fixedly installed together, the first butt joint end face 3121 on the first clamping end 312 of the first clamping member 31 butts against the first limiting plane 324 of the second clamping member 32, and the second butt joint end face 3131 on the second clamping end 313 of the first clamping member 31 butts against the second limiting plane 325 of the second clamping member 32, so as to prevent the clamping space after the butt joint of the first clamping groove 310 and the second clamping groove 320 from continuing to shrink.

[0026] In one embodiment of the present application, the first clamping piece 31 has a first connecting end 314 and a second connecting end 315, both of which protrude from the first clamping piece body 311 of the first clamping piece 31 by a preset length, and the first connecting end 314, the second connecting end 315 and the first clamping piece body 311 are fixedly connected together; the first connecting end 314, the second connecting end 315 on the first clamping piece 31 and the second clamping piece 32 are fixedly connected together in a detachable manner through bolt connection or screw connection.

[0027] In one embodiment of the present application, please refer to Figure 3 , the second clamping piece 32 further comprises a third connecting end 326 and a fourth connecting end 327, both of which protrude outward from the second clamping piece body 321 by a preset length, and both of which are fixedly connected to the second clamping piece body 321; the third connecting end 326, the fourth connecting end 327 and the sliding block 4 are fixedly installed together through bolt connection or screw connection, so that the second clamping piece 32 and the sliding block 4 are fixedly installed together in a detachable manner.

[0028] In one embodiment of the present application, please refer to Figure 1 , the detection device further comprises a support bottom plate 6, the sliding rail 5 is fixedly installed on the support bottom plate 6, and the driving mechanism 1 is fixedly installed on the support bottom plate 6.

[0029] The durability detection device of the ball screw provided by the present application has simple structure and simple detection method, the driving mechanism drives the chuck to rotate, the chuck drives the ball screw to rotate, the ball screw drives the screw nut to move back and forth on the ball screw quickly, so as to simulate the working process of the ball screw, and the durability of the ball screw can be detected in a short time.

[0030] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and it cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A ball screw durability testing device characterized by comprising: The utility model relates to a ball screw durability detection device, including: Driving mechanism, chuck, nut fixed assembly, sliding block, sliding rail, the driving mechanism and the chuck are connected, the driving mechanism drives the chuck rotates; The nut fixed assembly and the sliding block fixed installation are together, the sliding block sliding connection is in the sliding rail, and the sliding block is back and forth slid in the sliding rail in this way;The screw nut is detachably fixed and clamped in the nut fixed assembly;One end of the ball screw to be detected is fixed and clamped by the chuck, the other end of the ball screw to be detected is screwed into the screw nut in the nut fixed assembly, and the screw nut and the ball screw are threadedly connected; In this way, the driving mechanism drives the chuck to rotate, the chuck drives the ball screw to rotate, the ball screw drives the screw nut to move back and forth on the ball screw, and the screw nut drives the nut fixed assembly and the sliding block to move back and forth on the sliding rail during reciprocating movement, so as to detect the durability of the ball screw.

2. The ball screw durability testing device according to claim 1, wherein The nut fixed assembly includes a first clamping piece and a second clamping piece, and the first clamping piece and the second clamping piece are detachably fixedly connected together.

3. The ball screw durability testing device according to claim 2, wherein The first clamping piece is provided with a first clamping groove, and the second clamping piece is provided with a second clamping groove.

4. The ball screw durability testing device according to claim 3, wherein The first clamping groove of the first clamping piece and the second clamping groove of the second clamping piece are butted to form a larger clamping space, and the screw nut is fixedly clamped in the clamping space.

5. The ball screw durability testing device according to claim 3, wherein The first clamping piece includes a first clamping piece body, a first clamping end and a second clamping end. The first clamping end protrudes from the first clamping piece body by a predetermined height, the second clamping end protrudes from the first clamping piece body by a predetermined height, and the first clamping end and the second clamping end are fixedly connected to the first clamping piece body. The first clamping end and the second clamping end have a predetermined distance therebetween, so that the first clamping end, the second clamping end and the first clamping piece body collectively enclose the first clamping groove. The second clamping piece includes a second clamping piece body, a first protruding column and a second protruding column. The first protruding column protrudes from the second clamping piece body by a predetermined height, the second protruding column protrudes from the second clamping piece body by a predetermined height, and the first protruding column and the second protruding column are fixedly connected to the second clamping piece body. The first protruding column and the second protruding column have a predetermined distance therebetween, so that the first protruding column, the second protruding column and the second clamping piece body collectively enclose the second clamping groove.

6. The ball screw durability testing device according to claim 5, wherein The inner wall of the second clamping groove of the second clamping piece is provided with a first limiting plane and a second limiting plane; the first clamping piece is provided with a first butt end face on the first clamping end, and a second butt end face on the second clamping end; when the first clamping piece and the second clamping piece are fixedly installed together, the first butt end face on the first clamping end of the first clamping piece is butted with the first limiting plane of the second clamping piece, and the second butt end face on the second clamping end of the first clamping piece is butted with the second limiting plane of the second clamping piece, so as to prevent the clamping space from continuing to shrink after the first clamping groove and the second clamping groove are butted.

7. The ball screw durability testing device according to claim 4, wherein The first clamping piece has a first connecting end and a second connecting end, both of which protrude from the first clamping piece body by a preset length, and the first connecting end, the second connecting end and the first clamping piece body are fixedly connected together; the first connecting end, the second connecting end on the first clamping piece and the second clamping piece are detachably fixedly connected together by bolt connection or screw connection.

8. The ball screw durability testing device of claim 5, wherein The second clamping piece further includes a third connecting end and a fourth connecting end, both of which protrude outward from the second clamping piece body by a preset length, and both of which are fixedly connected to the second clamping piece body; the third connecting end, the fourth connecting end and the sliding block are fixedly installed together by bolt connection or screw connection, so that the second clamping piece and the sliding block are detachably fixedly installed together.

9. The ball screw durability testing device of claim 1, wherein It also includes a support bottom plate, the sliding rail is fixedly installed on the support bottom plate, and the driving mechanism is fixedly installed on the support bottom plate.

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