Ball spline lead screw testing device

Abstract

The utility model discloses a ball spline lead screw testing device, which comprises a base, a spline housing clamping assembly and a spline shaft clamping assembly, and is characterized in that the spline housing clamping assembly and the spline shaft clamping assembly are arranged at the top of the base, and the spline shaft clamping assembly comprises a sliding frame and two clamping plates symmetrically positioned in the sliding frame; a sliding frame is arranged on the base, a fixing block is arranged at the bottom of the sliding frame, a threaded hole is formed in the side wall of the fixing block, a sliding groove is formed in the top of the base, a threaded rod is arranged in the sliding groove, and the threaded rod rotationally penetrates through the threaded hole. The threaded rod is rotated to drive the fixing block and the sliding frame to move back and forth, the spline shaft is driven to move back and forth, when the spline shaft moves backwards every time, the moving length of the spline shaft can be tested by observing the position of the pointer on the side wall of the sliding frame on the scale on the side wall of the base, and the ball spline can be conveniently fixed and tested.

Description

Technical Field

[0001] The utility model relates to the technical field of ball splines, in particular to a ball spline lead screw testing device. Background Art

[0002] The ball spline is a linear motion system that achieves point contact and cyclic rolling through the precision-ground grooves of the spline shaft and the balls in the spline sleeve. Structurally, the ball spline is composed of a spline nut (spline sleeve), steel balls, a retainer, and a spline shaft.

[0003] During the production process of ball splines, the moving length of the spline shaft needs to be tested to determine whether the sliding length of the spline shaft meets the standard. The existing detection device does not have a test structure for ball splines, which is inconvenient to use. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems and / or the problems existing in an existing ball spline screw testing device, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a ball spline screw testing device, by arranging a spline sleeve clamping assembly and a spline shaft clamping assembly on the top of the base, the spline shaft clamping assembly includes a sliding frame and two clamping plates symmetrically located inside the sliding frame, a fixed block is arranged at the bottom of the sliding frame, a threaded hole is opened on the side wall of the fixed block, a sliding groove is arranged at the top of the base, a threaded rod is arranged inside the sliding groove, the threaded rod rotates and passes through the threaded hole, and after the spline sleeve is clamped by the spline sleeve clamping assembly, the spline shaft is fixed inside the sliding frame by using the two clamping plates, and the threaded rod is rotated to drive the fixed block and the sliding frame to move forward and backward, and drive the spline shaft to move forward and backward. Each time the spline shaft moves backward, the moving length of the spline shaft can be tested by observing the position of the pointer on the side wall of the sliding frame on the scale on the side wall of the base, so as to facilitate the fixing and testing of the ball spline.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A ball spline screw testing device, comprising:

[0009] A base, wherein a slide groove is provided on the top of the base, a first knob is rotatably connected to the side wall of the base, a threaded rod is installed on the side wall of the first knob, the threaded rod extends into the slide groove, and a scale is installed on the side wall of the base;

[0010] A spline sleeve clamping assembly, mounted on the front end of the top of the base, and used to fix the spline sleeve;

[0011] The spline shaft clamping assembly includes a sliding frame located at the top of the base, a fixed block installed at the bottom of the sliding frame, and two clamping plates symmetrically located inside the sliding frame. A second threaded hole is opened on the side wall of the fixed block, and the threaded rod rotates through the second threaded hole. A pointer is installed on the side wall of the sliding frame.

[0012] As a preferred solution of a ball spline screw testing device described in the utility model, the spline sleeve clamping assembly includes two fixed plates symmetrically installed on the top of the base and two clamping blocks symmetrically located between the two fixed plates, a first positive and negative threaded rod is rotatably connected between the two fixed plates, one end of the first positive and negative threaded rod extends out of the side wall of the fixed plate and is installed with a second knob, a clamping groove is opened on the side wall of the clamping block, a first threaded hole is opened on the side wall of the clamping block, and the first positive and negative threaded rod rotates through the first threaded hole.

[0013] As a preferred solution of the ball spline screw testing device described in the utility model, a guide rod is installed between the two fixing plates, a guide hole is opened on the side wall of the clamping block, and the guide rod passes through the guide hole.

[0014] As a preferred solution of a ball spline screw testing device described in the utility model, a second positive and negative threaded rod is rotatably connected inside the sliding frame, a third threaded hole is opened on the side wall of the clamping plate, the second positive and negative threaded rod rotates through the third threaded hole, and one end of the second positive and negative threaded rod extends out of the side wall of the sliding frame and is installed with a third knob.

[0015] As a preferred solution of the ball spline screw testing device described in the utility model, a guide groove is opened at the bottom of the sliding frame, a sliding block is installed at the bottom of the clamping plate, and the sliding block extends into the guide groove.

[0016] As a preferred solution of the ball spline screw testing device described in the utility model, the side wall of the clamping plate is installed with an anti-slip pad.

[0017] Compared with the prior art: a spline sleeve clamping assembly and a spline shaft clamping assembly are arranged on the top of the base, the spline shaft clamping assembly includes a sliding frame and two clamping plates symmetrically located inside the sliding frame, a fixed block is arranged at the bottom of the sliding frame, a threaded hole is opened on the side wall of the fixed block, a slide groove is arranged at the top of the base, a threaded rod is arranged inside the slide groove, the threaded rod rotates and passes through the threaded hole, and after the spline sleeve is clamped by the spline sleeve clamping assembly, the spline shaft is fixed inside the sliding frame by using the two clamping plates, and the threaded rod is rotated to drive the fixed block and the sliding frame to move forward and backward, and drive the spline shaft to move forward and backward. Each time the spline shaft moves backward, the moving length of the spline shaft can be tested by observing the position of the pointer on the side wall of the sliding frame on the scale on the side wall of the base, which is convenient for fixing and testing the ball spline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 This is an overall structural diagram of a ball spline screw testing device of the utility model;

[0020] Figure 2 This is a structural diagram of the base of a ball spline screw testing device of the utility model;

[0021] Figure 3 The utility model is a structural diagram of a spline shaft clamping assembly of a ball spline screw testing device. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides a ball spline screw testing device, by arranging a spline sleeve clamping assembly and a spline shaft clamping assembly on the top of a base, the spline shaft clamping assembly comprises a sliding frame and two clamping plates symmetrically located inside the sliding frame, a fixing block is arranged at the bottom of the sliding frame, a threaded hole is opened on the side wall of the fixing block, a sliding groove is arranged at the top of the base, a threaded rod is arranged inside the sliding groove, the threaded rod rotates and passes through the threaded hole, and after the spline sleeve is clamped by the spline sleeve clamping assembly, the spline shaft is fixed inside the sliding frame by using the two clamping plates, and the threaded rod is rotated to drive the fixing block and the sliding frame to move forward and backward, and drive the spline shaft to move forward and backward. Each time the spline shaft moves backward, the moving length of the spline shaft can be tested by observing the position of the pointer on the side wall of the sliding frame on the scale on the side wall of the base, so that the ball spline can be fixed and tested conveniently.

[0026] Figure 1-3 The figure shows a schematic diagram of a structure of a ball spline screw testing device according to the utility model. Figure 1-Figure 3 A ball spline screw testing device in this embodiment includes a base 100, a spline sleeve clamping assembly 200 and a spline shaft clamping assembly 300.

[0027] A slide groove 110 is provided at the top of the base 100 , a first knob 120 is rotatably connected to the side wall of the base 100 , a threaded rod 130 is installed on the side wall of the first knob 120 , the threaded rod 130 extends into the slide groove 110 , and a scale 140 is installed on the side wall of the base 100 .

[0028] The spline sleeve clamping assembly 200 is installed at the front end of the top of the base 100 and is used to fix the spline sleeve. The spline sleeve clamping assembly 200 includes two fixed plates 210 symmetrically installed on the top of the base 100 and two clamping blocks 220 symmetrically located between the two fixed plates 210. A first positive and negative threaded rod 230 is rotatably connected between the two fixed plates 210. One end of the first positive and negative threaded rod 230 extends out of the side wall of the fixed plate 210 and is installed with a second knob 240. A clamping groove 250 is opened on the side wall of the clamping block 220. A first threaded hole 260 is opened on the side wall of the clamping block 220. The first positive and negative threaded rod 230 rotates through the first threaded hole 260. A guide rod 270 is installed between the two fixed plates 210. A guide hole 280 is provided in the side wall of the clamping block 220, and the guide rod 270 passes through the guide hole 280. During the test, the spline sleeve is placed between the two clamping blocks 220, and the second knob 240 is rotated to drive the first positive and negative threaded rod 230 to rotate. The first positive and negative threaded rod 230 uses the screw structure to push the two clamping blocks 220 closer to each other until the inner wall of the clamping groove 250 fits the outer wall of the spline sleeve. The position of the spline sleeve is adjusted to align the rear end of the spline sleeve with the rear end of the clamping block 220. The second knob 240 is rotated to drive the first positive and negative threaded rod 230 to continue to rotate. The two clamping blocks 220 approach each other and clamp the spline sleeve, and the spline sleeve is clamped and fixed between the two fixing plates 210 and located at the top center of the base 100.

[0029] The spline shaft clamping assembly 300 includes a sliding frame 310 located at the top of the base 100, a fixed block 320 installed at the bottom of the sliding frame 310 and two clamping plates 330 symmetrically located inside the sliding frame 310, a second threaded hole 321 is opened on the side wall of the fixed block 320, the threaded rod 130 rotates through the second threaded hole 321, a pointer 350 is installed on the side wall of the sliding frame 310, a second positive and negative threaded rod 340 is rotatably connected inside the sliding frame 310, a third threaded hole 331 is opened on the side wall of the clamping plate 330, the second positive and negative threaded rod 340 rotates through the third threaded hole 331, one end of the second positive and negative threaded rod 340 extends out of the side wall of the sliding frame 310 and is installed with a third knob 341, a guide groove 360 ​​is opened on the bottom of the sliding frame 310, and the bottom of the clamping plate 330 The slider 332 is installed in the part, and the slider 332 extends into the guide groove 360. The side wall of the clamping plate 330 is installed with an anti-skid pad 333. After the spline sleeve is fixed, the sliding frame 310 is located at the front end of the sliding groove 110, and the spline shaft is located between the two clamping plates 330. Rotating the third knob 341 drives the second positive and negative threaded rod 340 to rotate, and the screw rod structure is used to push the two clamping plates 330 to approach each other and clamp the tail end of the spline shaft. At this time, rotating the first knob 120 drives the threaded rod 130 to rotate, and the screw rod structure diagram moves the fixed block 320 to drive the sliding frame 310 to move back and forth, and the sliding frame 310 drives the spline sleeve to move back and forth. By observing the position of the pointer 350 on the scale 140, the distance of the spline shaft each time it moves backward and stretches can be measured, which is convenient for testing the ball spline.

[0030] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A ball spline screw testing device, characterized in that: include: A base (100), wherein a slide groove (110) is provided on the top of the base (100), a first knob (120) is rotatably connected to the side wall of the base (100), a threaded rod (130) is installed on the side wall of the first knob (120), the threaded rod (130) extends into the inside of the slide groove (110), and a scale (140) is installed on the side wall of the base (100); A spline sleeve clamping assembly (200), mounted on the front end of the top of the base (100) and used to fix the spline sleeve; The spline shaft clamping assembly (300) comprises a sliding frame (310) located at the top of the base (100), a fixed block (320) installed at the bottom of the sliding frame (310), and two clamping plates (330) symmetrically located inside the sliding frame (310), wherein a second threaded hole (321) is opened on the side wall of the fixed block (320), and the threaded rod (130) rotates through the second threaded hole (321), and a pointer (350) is installed on the side wall of the sliding frame (310).

2. A ball spline screw testing device according to claim 1, characterized in that: The spline sleeve clamping assembly (200) comprises two fixing plates (210) symmetrically mounted on the top of the base (100) and two clamping blocks (220) symmetrically located between the two fixing plates (210); a first positive and negative threaded rod (230) is rotatably connected between the two fixing plates (210); one end of the first positive and negative threaded rod (230) extends out of the side wall of the fixing plate (210) and is mounted with a second knob (240); a clamping groove (250) is provided on the side wall of the clamping block (220); a first threaded hole (260) is provided on the side wall of the clamping block (220); and the first positive and negative threaded rod (230) rotates through the first threaded hole (260).

3. A ball spline screw testing device according to claim 2, characterized in that: A guide rod (270) is installed between the two fixing plates (210), a guide hole (280) is opened on the side wall of the clamping block (220), and the guide rod (270) passes through the guide hole (280).

4. A ball spline screw testing device according to claim 3, characterized in that: A second positive and negative threaded rod (340) is rotatably connected inside the sliding frame (310), a third threaded hole (331) is opened on the side wall of the clamping plate (330), the second positive and negative threaded rod (340) rotates through the third threaded hole (331), and one end of the second positive and negative threaded rod (340) extends out of the side wall of the sliding frame (310) and is installed with a third knob (341).

5. A ball spline screw testing device according to claim 4, characterized in that: A guide groove (360) is provided at the bottom of the sliding frame (310), a slider (332) is installed at the bottom of the clamping plate (330), and the slider (332) extends into the guide groove (360).

6. A ball spline screw testing device according to claim 5, characterized in that: The side wall of the clamping plate (330) is installed with an anti-slip pad (333).

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