Rollaway nest measuring device for ball linear guide rail
By designing a raceway measuring device including a frame, a pressing wheel and a limiting assembly, the problem of the laser ranging device maintaining a horizontal state during the movement of the ball linear guide rail is solved, and high-precision and reliable raceway measurement are achieved.
Patent Information
- Application Number
- CN202510742078.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2025-07-08
AI Technical Summary
When the existing laser ranging device measures the ball linear guide rail raceway, it is difficult to maintain the horizontal state of the guide rail during movement, resulting in measurement errors and inconsistencies.
A raceway measuring device is designed, including a frame, press wheel, bracket, limit assembly and down pressure assembly, through which the guide rails maintain their horizontal attitude during movement to ensure measurement accuracy and reliability.
It effectively avoids measurement errors caused by changes in the guide rail position, improves measurement accuracy and reliability, and ensures the accuracy and consistency of raceway measurement.
Smart Images
Figure CN120274660A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of ball linear guide measurement, and particularly to a raceway measurement device for a ball linear guide. Background Art
[0002] In precision machinery and automation equipment, ball linear guides are widely used due to their high precision, low friction characteristics, and long service life. To ensure that these guides perform well in their intended applications, strict control over their manufacturing precision is necessary, especially the geometric dimensions and shape errors of the raceways. The quality of the raceways directly affects the positioning accuracy and smoothness of the moving parts, so accurate measurement of them is crucial.
[0003] Traditional raceway measurement methods usually include using tools such as micrometers, calipers, optical straightness meters, etc. However, these methods have limitations when dealing with long ball linear guides, especially when continuous measurement along the entire length direction is required. Laser ranging, as a non-contact measurement method, can provide higher precision and efficiency and is very suitable for long-distance straightness and dimension measurement. However, when using laser ranging to measure the raceway of a ball linear guide, to ensure the consistency and standardization of the dimensions of the entire raceway, it is necessary to ensure that the guide remains horizontal during movement. For a ball linear guide whose length is much larger than the measurement platform, maintaining its horizontal state during movement is a significant technical challenge. Due to the uneven weight distribution of such a guide itself or improper external operation, it is very easy to tilt during the measurement process. This position offset will not only cause the measurement data to be distorted but also introduce additional error sources, seriously affecting the final measurement results and product quality.
[0004] To solve the above problems, the present invention proposes a raceway measurement device for a ball linear guide. This raceway measurement device can stably maintain its horizontal attitude during the movement of the ball linear guide, ensuring that the position of the guide remains unchanged during the measurement process, so as to avoid measurement errors caused by its own position change, thereby improving the measurement precision and reliability. Summary of the Invention
[0005] To overcome the shortcomings that the existing laser ranging measurement device cannot ensure that the guide remains horizontal during movement and the position offset of the guide itself will affect the measurement results, the present invention provides a raceway measurement device for a ball linear guide. This raceway measurement device can stably maintain its horizontal attitude during the movement of the ball linear guide, ensuring that the position of the guide remains unchanged during the measurement process, so as to avoid measurement errors caused by its own position change, thereby improving the measurement precision and reliability.
[0006] The technical solution is: A raceway measuring device for a ball linear guide rail, including a frame. A measuring groove is provided on the frame. A strip-shaped groove is opened at the bottom end of the frame. A display screen is fixedly connected to the top end of the frame. The measuring groove of the frame is used to place the linear guide rail. A laser measuring instrument is fixedly connected to the bottom end inside the measuring groove of the frame. It also includes two laterally symmetric rotating frames. The two laterally symmetric rotating frames are rotatably connected to the frame. A pressing wheel is rotatably connected to one end of the rotating frame away from the frame. Two laterally symmetric guide blocks are fixedly connected to both longitudinal sides of the frame. Two laterally symmetric supporting brackets are rotatably connected to both longitudinal sides of the frame. The top end of the supporting bracket is flush with the bottom end of the measuring groove. Two laterally symmetric top blocks are fixedly connected to the rotational connection between the supporting bracket and the frame. A top rod is slidably connected inside the guide block. The top block is in pressing fit with the adjacent top rod. A first clamping block is fixedly connected to the top end of the top rod. Two symmetrically left and right telescopic support rods are rotatably connected to the bottom end of the supporting bracket. A rhombic block is fixedly connected to the rotational connection between the rotating frame and the frame. The first clamping block is in contact with the adjacent rhombic block. A limiting component for adjusting the width according to the size of the linear guide rail is provided on the frame. The limiting component is used to limit the left and right offset of the linear guide rail. A pressing-down component for pressing down the linear guide rail is provided on the frame. The pressing-down component is used to prevent the linear guide rail from tilting upwards.
[0007] Further, the limiting component includes a bidirectional lead screw. The bidirectional lead screw is rotatably connected inside the frame. A scale ring is fixedly connected to one side of the frame. One end of the bidirectional lead screw is located inside the scale ring. Two sliding plates are slidably connected to the two lateral sides of the measuring groove of the frame. The bottom end of the sliding plate is threadedly connected to the bidirectional lead screw. Guide rollers are rotatably connected to the sliding plate at equally spaced intervals.
[0008] Further, the pressing-down component includes two longitudinally symmetric fixed frames. The two longitudinally symmetric fixed frames are fixedly connected to the frame. A sliding rod is slidably connected to the fixed frame. A limiting plate is fixedly connected between the bottom ends of the two sliding rods. The limiting plate is located inside the measuring groove of the frame. Level gauges are fixedly connected to both longitudinal ends of the limiting plate. Rollers are rotatably connected to the limiting plate at equally spaced intervals. A spring is connected between the sliding rod and the fixed frame.
[0009] Further, it also includes a locking component for locking the position of the sliding rod. The locking component includes a sliding frame. The sliding frame is slidably connected to the two lateral sides inside the measuring groove of the frame. A elastic sheet is connected between the top end of the sliding frame and the adjacent fixed frame. A support block is fixedly connected to the top end of the fixed frame. A moving frame is slidably connected to the support block. A second clamping block is fixedly connected to the sliding rod. Slots are opened in the moving frame at equally spaced intervals and are adapted to the second clamping block. A matching block is fixedly connected to the bottom end of the moving frame.
[0010] Further, trapezoidal blocks with inclined settings on both longitudinal sides are provided at the bottom end of the sliding frame. The linear guide rail is in pressing fit with the trapezoidal blocks.
[0011] Further, an inclined slot is opened on the matching block. The sliding frame is inserted into the inclined slot.
[0012] Further, it further includes a fixing component for fixing the frame to a specified position. The fixing component includes equally spaced guide rods. The equally spaced guide rods are slidably connected inside the frame. A pressing plate is fixedly connected between the bottom ends of the guide rods. The pressing plate is located in the strip-shaped groove. A threaded rod is rotatably connected to the frame, and a threaded sleeve is rotatably connected to the pressing plate. The threaded sleeve is threadedly connected to the threaded rod.
[0013] Beneficial effects: 1. Insert the linear guide rail into the measurement groove of the frame and move it. Measure the inner diameter of the raceway of the linear guide rail with a laser measuring instrument. After the linear guide rail is inserted into the measurement groove of the frame, the pressing wheel restricts the upper side of the linear guide rail, and the supporting bracket can extend the measurement groove to expand the supporting area of the lower side of the linear guide rail. By restricting the linear guide rail from both the upper and lower sides, it can ensure that the linear guide rail moves in a straight line when moving forward and backward, ensuring that the position of the linear guide rail remains unchanged during the measurement process, so as to avoid measurement errors caused by its own position change, thereby improving the measurement accuracy and reliability.
[0014] 2. After the linear guide rail is inserted into the measurement groove of the frame, it is located between the left and right sliding plates. The left and right sliding plates limit the left and right sides of the linear guide rail to prevent the linear guide rail from shifting left and right during the forward and backward movement, which may affect the detection result.
[0015] 3. The limiting plate slides downward to press the upper side of the linear guide rail, preventing the situation where the tail end of the linear guide rail is too heavy and causes it to tilt upwards, which may lead to measurement errors.
[0016] 4. When the linear guide rail moves forward and backward, the moving frame moves closer to the sliding rod, causing the second block to be inserted into the card slot of the moving frame. The position of the sliding rod is directly locked by the moving frame, so that the limiting plate maintains this height to limit the linear guide rail, preventing the limiting plate from moving abnormally during the measurement process and affecting the limiting effect.
[0017] 5. The pressing plate moves downward to cooperate with the lower part of the frame to clamp the table board, fixing the device to a specified position for use. Description of the Drawings
[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.
[0019] Figure 2 It is a three-dimensional structural schematic diagram of the frame, display screen and linear guide rail of the present invention.
[0020] Figure 3 It is a three-dimensional structural schematic diagram of the frame, display screen and laser measuring instrument of the present invention.
[0021] Figure 4 It is a three-dimensional structural schematic diagram of components such as the pressing wheel, rotating frame and supporting bracket of the present invention.
[0022] Figure 5 This is a three-dimensional structure diagram of components such as the top block, ejector rod, and first clamping block of the present invention.
[0023] Figure 6 This is a three-dimensional structure diagram of the support bracket and telescopic support rod of the present invention.
[0024] Figure 7 This is a three-dimensional structure diagram of components such as the bidirectional lead screw, sliding plate, and guide roller of the present invention.
[0025] Figure 8 This is a three-dimensional structure diagram of the bidirectional lead screw, scale ring, sliding plate, and guide roller of the present invention.
[0026] Figure 9 This is a three-dimensional structure diagram of components such as the level gauge, limit plate, and fixing bracket of the present invention.
[0027] Figure 10 This is a three-dimensional structure diagram of components such as the sliding frame, elastic piece, and moving frame of the present invention.
[0028] Figure 11 This is a three-dimensional structure diagram of components such as the sliding frame, moving frame, and mating block of the present invention.
[0029] Figure 12 This is a three-dimensional structure diagram of components such as the second clamping block, mating block, and support block of the present invention.
[0030] Figure 13 This is a three-dimensional structure diagram of components such as the pressing plate, guide rod, and threaded rod of the present invention.
[0031] The labels in the figure are: 1 - frame, 11 - display screen, 12 - linear guide rail, 13 - laser measuring instrument, 14 - pressure wheel, 15 - rotating frame, 16 - guide block, 17 - support bracket, 18 - top block, 19 - ejector rod, 110 - first clamping block, 111 - telescopic support rod, 112 - rhombic block, 2 - bidirectional lead screw, 21 - scale ring, 22 - sliding plate, 23 - guide roller, 3 - level gauge, 31 - limit plate, 32 - fixing bracket, 33 - sliding rod, 34 - roller, 35 - spring, 4 - sliding frame, 41 - elastic piece, 42 - moving frame, 43 - second clamping block, 44 - mating block, 45 - support block, 5 - pressing plate, 51 - guide rod, 52 - threaded rod, 53 - threaded sleeve. Detailed implementation mode
[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes, but the protection scope and application scope of the present invention are not limited.
[0033] Example 1: A raceway measuring device for a ball linear guide rail, as Figures 1 - 6As shown in the figure, it includes a machine frame 1, a display screen 11, a laser measuring instrument 13, a pressing wheel 14, a rotating frame 15, a guiding block 16, a supporting bracket 17, a top block 18, a top rod 19, a first clamping block 110, a telescopic support rod 111, a rhombic block 112, a limiting component and a pressing-down component. A measuring groove is provided in the upper left part of the machine frame 1, a strip-shaped groove is provided in the lower part of the machine frame 1, the display screen 11 is fixedly connected to the upper side of the left part of the machine frame 1, the measuring groove of the machine frame 1 is used for placing a linear guide rail 12, the laser measuring instrument 13 is fixedly connected to the lower side in the measuring groove of the machine frame 1, two symmetrically arranged rotating frames 15 are rotatably connected to both the front and rear sides of the machine frame 1, the pressing wheel 14 is rotatably connected to one end of the rotating frame 15 far away from the machine frame 1, two symmetrically arranged guiding blocks 16 are fixedly connected to both the front and rear sides of the machine frame 1, two symmetrically arranged supporting brackets 17 are rotatably connected to both the front and rear sides of the machine frame 1, the upper side of the supporting bracket 17 is flush with the lower side in the measuring groove, two symmetrically arranged top blocks 18 are fixedly connected to the rotating connection part of the supporting bracket 17 and the machine frame 1, the top rod 19 is slidably connected in the guiding block 16, the top block 18 is in pressing fit with the adjacent top rod 19, the first clamping block 110 is fixedly connected to the upper side of the top rod 19, two symmetrically arranged telescopic support rods 111 are rotatably connected to the lower side of the supporting bracket 17, the rhombic block 112 is fixedly connected to the rotating connection part of the rotating frame 15 and the machine frame 1, the first clamping block 110 is in contact with the adjacent rhombic block 112, a limiting component for adjusting the width according to the size of the linear guide rail 12 is provided on the machine frame 1, the limiting component is used for restricting the left and right offset of the linear guide rail 12, a pressing-down component for pressing the linear guide rail 12 is provided on the machine frame 1, and the pressing-down component is used for preventing the linear guide rail 12 from tilting up.
[0034] When using this device, the staff inserts the linear guide rail 12 to be measured into the measurement groove of the frame 1 and moves it. The inner diameter of the raceway of the linear guide rail 12 is measured by the laser measuring instrument 13, and the measured value is displayed on the display screen 11. The staff judges whether there is a problem with the raceway of the linear guide rail 12 by observing the change of the value. After the linear guide rail 12 is inserted into the measurement groove of the frame 1, the left and right sides of the linear guide rail 12 are limited by the limiting component to prevent the linear guide rail 12 from shifting left and right when moving forward and backward for measurement. After the linear guide rail 12 is inserted into the measurement groove of the frame 1, the pressing wheel 14 and the downward pressing component apply a downward pressure to the linear guide rail 12. The supporting bracket 17 can extend the measurement groove and expand the supporting area of the lower side of the linear guide rail 12, while the telescopic support rod 111 can support the supporting bracket 17. By restricting the linear guide rail 12 from above and below, it can ensure that the linear guide rail 12 moves in a straight line when moving forward and backward, ensuring that the position of the linear guide rail 12 remains unchanged during the measurement process to avoid measurement errors caused by its own position change, thereby improving the measurement accuracy and reliability. When the device is no longer in use, the staff pulls out the linear guide rail 12, then controls the supporting bracket 17 to rotate upward and fold. The telescopic support rod 111 can also rotate and embed into the supporting bracket 17. The upward rotation of the supporting bracket 17 drives the top block 18 to rotate. After the top block 18 rotates, it no longer presses against the ejector rod 19. Under the action of gravity, the ejector rod 19 drives the first latch 110 to move downward. After the first latch 110 moves downward, it separates from the rhombic block 112, and the rotating frame 15 can drive the pressing wheel 14 to rotate and fold.
[0035] As Figure 1 , Figure 7 and Figure 8 shown, the limiting component includes a bidirectional lead screw 2, a scale ring 21, a sliding plate 22 and a guide roller 23. The bidirectional lead screw 2 is rotatably connected inside the frame 1. The scale ring 21 is fixedly connected to the right side of the frame 1. The right end of the bidirectional lead screw 2 is located inside the scale ring 21. The left and right sides of the measurement groove of the frame 1 are both slidably connected with a sliding plate 22. The lower part of the sliding plate 22 is threadedly connected to the bidirectional lead screw 2. Three equally spaced guide rollers 23 are rotatably connected to the sliding plate 22.
[0036] After the linear guide rail 12 is inserted into the measurement groove of the frame 1, the linear guide rail 12 is located between the left and right sliding plates 22. The left and right sides of the linear guide rail 12 are limited by the left and right sliding plates 22 to prevent the linear guide rail 12 from shifting left and right during the process of moving forward and backward. The rotation of the guide roller 23 can reduce the friction between the linear guide rail 12 and the sliding plate 22, enabling the linear guide rail 12 to move forward and backward easily without affecting the measurement. The rotation of the bidirectional lead screw 2 in cooperation with the scale ring 21 can accurately adjust the distance between the left and right sliding plates 22, so as to adapt to linear guide rails 12 of different sizes.
[0037] AsFigure 1 and Figure 9 As shown in Figure 9 , the pressing component includes a spirit level 3, a limiting plate 31, a fixing frame 32, a sliding rod 33, a roller 34 and a spring 35. Two symmetric fixing frames 32 are fixedly connected to the upper left part of the frame 1. The middle part of the fixing frame 32 is slidably connected with the sliding rod 33. A limiting plate 31 is fixedly connected between the lower sides of the front and rear sliding rods 33. The limiting plate 31 is located in the measuring groove of the frame 1. Spirit levels 3 are fixedly connected to both the front and rear ends of the limiting plate 31. Three equally spaced rollers 34 are rotatably connected to the limiting plate 31. A spring 35 is connected between the sliding rod 33 and the fixing frame 32.
[0038] When using the device, the staff member pulls the sliding rod 33 to slide upward, and the spring 35 deforms. The upward sliding of the sliding rod 33 drives the limiting plate 31 to lift upward. When one end of the linear guide 12 is inserted into the measuring groove of the frame 1, the staff member releases the sliding rod 33. Under the action of the spring 35 resetting, the sliding rod 33 drives the limiting plate 31 to slide downward to press the upper side of the linear guide 12, avoiding the situation that the tail end of the linear guide 12 is too heavy and drops, resulting in tilting. When the limiting plate 31 presses the linear guide 12 to keep it in a horizontal state, the staff member can specifically judge whether the linear guide 12 is in a horizontal state through the spirit level 3. When the linear guide 12 moves back and forth, the rotation of the rollers 34 can also reduce the friction between the linear guide 12 and the limiting plate 31, so as to facilitate the back-and-forth movement of the linear guide 12.
[0039] Embodiment 2: On the basis of Embodiment 1, as Figure 1 、 Figure 10 、 Figure 11 and Figure 12 shown, it further includes a locking component for locking the position of the sliding rod 33. The locking component includes a sliding frame 4, a spring piece 41, a moving frame 42, a second clamping block 43, a mating block 44 and a supporting block 45. Sliding frames 4 are slidably connected to both the left and right sides in the measuring groove of the frame 1. The lower end of the sliding frame 4 is provided with trapezoidal blocks that are inclined on both the front and rear sides. The linear guide 12 is in extrusion fit with the trapezoidal blocks. Two spring pieces 41 are connected between the upper part of the sliding frame 4 and the adjacent fixing frame 32. A supporting block 45 is fixedly connected to the middle part of the upper side of the fixing frame 32. A moving frame 42 is slidably connected to the supporting block 45. A second clamping block 43 is fixedly connected to the sliding rod 33. The moving frame 42 is provided with equally spaced clamping grooves adapted to the second clamping block 43. A mating block 44 is fixedly connected to the lower part of the moving frame 42. An inclined groove is opened on the mating block 44. The upper end of the sliding frame 4 is inserted into the inclined groove.
[0040] When using this device, when the linear guide rail 12 moves back and forth in the measurement groove of the frame 1, it will squeeze the trapezoidal block, thereby driving the sliding frame 4 to slide downward. The elastic piece 41 deforms. The downward sliding of the sliding frame 4 squeezes the inclined groove control fitting block 44 to move toward the side close to the slide bar 33, thereby driving the side of the moving frame 42 close to the slide bar 33 to move, so that the second latch 43 on the slide bar 33 is caught in the card slot of the moving frame 42. Initially, the limit plate 31 presses against the linear guide rail 12 by the resilience of the spring 35. When the second latch 43 is caught in the moving frame 42, the moving frame 42 can directly lock the position of the slide bar 33, so that the limit plate 31 maintains this height to limit the linear guide rail 12, avoiding abnormal movement of the limit plate 31 during the measurement process and affecting the limiting effect. When the measurement is completed, the linear guide rail 12 moves away from the trapezoidal block. At this time, under the action of the reset of the elastic piece 41, the sliding frame 4 slides upward and resets. The upward sliding of the sliding frame 4 squeezes the inclined groove control fitting block 44 to move in the reverse direction and reset, thereby driving the moving frame 42 to move in the reverse direction and reset and separate from the second latch 43.
[0041] As Figure 1 and Figure 13 shown, it further includes a fixing component for fixing the frame 1 at a specified position. The fixing component includes a pressing plate 5, a guide rod 51, a threaded rod 52 and a threaded sleeve 53. The right part of the frame 1 is slidably connected with equidistantly distributed guide rods 51. A pressing plate 5 is fixedly connected between the lower sides of the guide rods 51. The pressing plate 5 is located in the strip-shaped groove. The right part of the frame 1 is rotatably connected with a threaded rod 52. The right part of the pressing plate 5 is rotatably connected with a threaded sleeve 53. The threaded sleeve 53 is threadedly connected with the threaded rod 52.
[0042] When using this device, the staff can directly place the frame 1 on the table for use, or control the rotation of the threaded rod 52. The rotation of the threaded rod 52 drives the threaded sleeve 53 to move downward. The downward movement of the threaded sleeve 53 drives the pressing plate 5 to move downward to cooperate with the lower part of the frame 1 to clamp the table board, thereby fixing this device at a specified position for use. When the pressing plate 5 cooperates with the lower part of the frame 1 to clamp the table board, the staff can also observe whether this device is installed horizontally through the level 3.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.
Claims
1. A raceway measuring device for a ball linear guide rail, comprising a frame (1). A measuring groove is provided on the frame (1), a strip-shaped groove is opened at the bottom end of the frame (1), a display screen (11) is fixedly connected to the top end of the frame (1). The measuring groove of the frame (1) is used to place a linear guide rail (12), and a laser measuring instrument (13) is fixedly connected to the bottom end inside the measuring groove of the frame (1). It is characterized in that, It also includes a horizontally symmetric rotating frame (15). The horizontally symmetric rotating frame (15) is rotatably connected to the frame (1). One end of the rotating frame (15) away from the frame (1) is rotatably connected with a pressing wheel (14). On both longitudinal sides of the frame (1), there are fixedly connected two horizontally symmetric guiding blocks (16). On both longitudinal sides of the frame (1), there are rotatably connected supporting brackets (17). The top end of the supporting bracket (17) is flush with the bottom end of the measuring groove. At the rotating connection of the supporting bracket (17) and the frame (1), there are fixedly connected two horizontally symmetric top blocks (18). A top rod (19) is slidably connected in the guiding block (16). The top block (18) is in pressing fit with the adjacent top rod (19). The top end of the top rod (19) is fixedly connected with a first clamping block (110). At the bottom end of the supporting bracket (17), there are rotatably connected left-right symmetric telescopic support rods (111). At the rotating connection of the rotating frame (15) and the frame (1), there is fixedly connected a rhombic block (112). The first clamping block (110) is in contact with the adjacent rhombic block (112). On the frame (1), there is a limiting component for adjusting the width according to the size of the linear guide rail (12). The limiting component is used to limit the left-right offset of the linear guide rail (12). On the frame (1), there is a pressing-down component for pressing down the linear guide rail (12). The pressing-down component is used to prevent the linear guide rail (12) from tilting upwards.
2. The raceway measuring device for a ball linear guide according to claim 1, characterized in that, The limiting component includes a bidirectional lead screw (2). The bidirectional lead screw (2) is rotatably connected inside the frame (1). One side of the frame (1) is fixedly connected with a scale ring (21). One end of the bidirectional lead screw (2) is located inside the scale ring (21). On both transverse sides of the measuring groove of the frame (1), there are slidably connected sliding plates (22). The bottom end of the sliding plate (22) is threadedly connected with the bidirectional lead screw (2). On the sliding plate (22), there are rotatably connected equally spaced guiding rollers (23).
3. The raceway measuring device for a ball linear guide according to claim 2, characterized in that, The pressing-down component includes two longitudinally symmetric fixing frames (32). The two longitudinally symmetric fixing frames (32) are fixedly connected to the frame (1). On the fixing frame (32), there is a slidably connected sliding rod (33). Between the bottom ends of the two sliding rods (33), there is fixedly connected a limiting plate (31). The limiting plate (31) is located inside the measuring groove of the frame (1). At both longitudinal ends of the limiting plate (31), there are fixedly connected spirit levels (3). On the limiting plate (31), there are rotatably connected equally spaced rollers (34). Between the sliding rod (33) and the fixing frame (32), there is connected a spring (35).
4. A raceway measuring device for a ball linear guide according to claim 3, characterized in that, It also includes a locking component for locking the position of the sliding rod (33). The locking component includes a sliding frame (4). The sliding frame (4) is slidably connected to both transverse sides inside the measuring groove of the frame (1). Between the top end of the sliding frame (4) and the adjacent fixing frame (32), there is connected an elastic piece (41). The top end of the fixing frame (32) is fixedly connected with a supporting block (45). On the supporting block (45), there is a slidably connected moving frame (42). On the sliding rod (33), there is fixedly connected a second clamping block (43). The moving frame (42) is provided with equally spaced clamping slots adapted to the second clamping block (43). The bottom end of the moving frame (42) is fixedly connected with a mating block (44).
5. The raceway measuring device for a ball linear guide rail according to claim 4, characterized in that The bottom end of the sliding carriage (4) is provided with trapezoidal blocks that are inclined on both longitudinal sides, and the linear guide rail (12) is in extrusion fit with the trapezoidal blocks.
6. The raceway measuring device for a ball linear guide according to claim 5, characterized in that, An inclined groove is formed in the mating block (44), and the sliding carriage (4) is inserted into the inclined groove.
7. A raceway measuring device for a ball linear guide according to claim 6, characterized in that, It further includes a fixing component for fixing the frame (1) at a specified position. The fixing component includes equally spaced guide rods (51). The equally spaced guide rods (51) are slidably connected within the frame (1). A pressure plate (5) is fixedly connected between the bottom ends of the guide rods (51). The pressure plate (5) is located within the strip-shaped groove. A threaded rod (52) is rotatably connected to the frame (1), and a threaded sleeve (53) is rotatably connected to the pressure plate (5). The threaded sleeve (53) is threadedly connected to the threaded rod (52).