Temperature-controllable length measuring machine

Abstract

The application discloses a temperature-controllable length measuring machine and relates to the technical field of length measurement. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabilizing assembly. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabilizing assembly. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabilizing assembly. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabilizing assembly. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabilizing assembly. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabilizing assembly. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabilizing assembly. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabilizing assembly. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabilizing assembly. The length measuring machine body comprises a first length measuring assembly, a stabilizing assembly arranged on one side of the first length measuring assembly and a second length measuring assembly arranged on the side, away from the first length measuring assembly, of the stabil

Description

Technical Field

[0001] This invention relates to the field of length measurement technology, specifically a temperature-controllable length measuring machine. Background Technology

[0002] A slewing bearing is a rotating rolling element bearing that typically supports a heavy but slow-rotating or combined slow-oscillating load (axial, radial, and moment loads). It is usually a horizontal platform, such as the upwind platform of a conventional crane, a swing palletizer, or a horizontal axis (yaw) windmill. In other directions (e.g., a horizontal rotating axis), they are used in material handling grabs, forklift attachments, welding tilting jigs, etc.

[0003] During the machining of slewing bearings, their outer diameter and length need to be accurately measured. The current measurement method usually uses a length measuring machine. However, due to the poor temperature control in the factory, the temperature deviation is large. Changes in room temperature cause thermal expansion and contraction of the slewing bearing to be measured, resulting in length deviation of its outer wall. Because the existing length measuring machine has a relatively simple structure, it has a large measurement error and low measurement accuracy. Furthermore, the workpiece to be measured needs to be limited during the length measurement process. The existing limiting structure is to manually rotate the screw to limit the workpiece. This method requires repeated rotation of the screw, which is extremely inconvenient and cumbersome.

[0004] The existing length measuring machine requires the length measuring component to be moved during use. During the movement of the length measuring component, wear occurs at the contact point between the component and the length measuring machine track. The existing track and the length measuring component are connected by a sliding connection, which leads to greater wear. Over time, the friction greatly reduces the service life of the track, which has certain limitations. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a temperature-controllable length measuring machine to solve the technical problems mentioned in the background above.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a temperature-controllable length measuring machine, comprising a length measuring machine body, the length measuring machine body including a first length measuring component, the length measuring machine body including a stabilizing component located on one side of the first length measuring component, and a second length measuring component disposed on the side of the stabilizing component away from the first length measuring component.

[0007] The length measuring machine body includes a guide rail body, and a support guide rail groove is provided on the side wall of the guide rail body. Multiple sets of oil accumulation grooves are provided at the end of the support guide rail groove.

[0008] The first measuring component includes a first measuring seat, and a first measuring head is provided at the top of the first measuring seat;

[0009] The stabilizing component includes a measuring base, two sets of transmission racks slidingly on the side wall of the measuring base, a transmission gear plate rotating inside the measuring base that meshes with the two sets of transmission racks, multiple sets of sliding columns sliding at the ends of the transmission gear plate, a slider extending to the top of the measuring base fixed at the end of the sliding column, a rubber limit seat fixed at the top of the slider, a magnetic temperature control box sleeved on the outer wall of the measuring base fixed on the side wall of the transmission racks, a temperature control component provided on the inner wall of the magnetic temperature control box, and a temperature control probe provided on the inner wall of the magnetic temperature control box below the temperature control component;

[0010] The second length measuring assembly includes a second length measuring seat. Two sets of transmission rods slide inside the second length measuring seat. Each transmission rod has a rotating oil-distributing wheel on its side wall that contacts an oil collection tank. A return spring is fixed between the transmission rod and the inside of the second length measuring seat. A connecting rod is fixed between the top ends of the two sets of transmission rods. A pushing rod is fixed to the side wall of the connecting rod. An oil tank is provided on the side wall of the second length measuring seat. An inner fixing block is fixed to the inner wall of the oil tank. A sliding sleeve that slides on the inner wall of the oil tank is sleeved on the side wall of the inner fixing block. A stop ring that contacts the end of the pushing rod is fixed to the bottom end of the sliding sleeve. A corrugated hose is fixed between the top end of the pushing rod and the sliding sleeve.

[0011] Preferably, multiple sets of oil accumulation grooves are equidistantly distributed at the ends of the support guide groove, and the inner wall of the support guide groove is in contact with the bottom end of the second measuring seat.

[0012] Preferably, a control console is provided at the top of the second measuring seat, and a second measuring head is provided at the top of the control console. The second measuring head is at the same horizontal position as the first measuring head. A display screen is provided on the top of the control console on one side of the second measuring head. A first measuring hole matching the first measuring head is opened on the side wall of the magnetic temperature control box, and a second measuring hole matching the second measuring head is opened on the other side of the magnetic temperature control box.

[0013] Preferably, the side wall of the measuring base is provided with a guide groove that matches the transmission rack, the end of the transmission gear plate is provided with multiple sets of arc-shaped grooves that match multiple sets of sliding columns, and the multiple sets of arc-shaped grooves are arranged in a ring array. The end of the measuring base is provided with multiple sets of straight sliding grooves that match multiple sets of sliders, and the multiple sets of straight sliding grooves are arranged in a ring array. The top of the measuring base is provided with the workpiece to be measured.

[0014] Preferably, a pair of mutually attracted magnetic blocks are provided between the two sets of magnetic temperature control boxes, and multiple sets of temperature control components are distributed at equal intervals on the inner wall of the magnetic temperature control box.

[0015] Preferably, the sidewall of the oil distributor has multiple sets of oil dispersing holes, which are arranged in a ring array. The inside of the oil distributor has an oil passage groove extending to the top of the push rod, and the other end of the oil passage groove is connected to the multiple sets of oil dispersing holes.

[0016] Preferably, the inner wall of the sleeve is provided with two sets of external oil passage grooves, the side wall of the inner fixing block is provided with an inner oil passage groove above the external oil passage grooves, the bottom of the oil tank is provided with a rotating groove that matches the sleeve, and the top of the oil tank is provided with an oil cap.

[0017] Preferably, the guide rail body has a threaded rod that rotates inside, and a handle is fixed at the end of the threaded rod. The bottom end of the second measuring seat is connected to the threaded rod by a thread.

[0018] Preferably, the bottom end of the guide rail body is fixed with two sets of bases, and the two sets of bases are symmetrically arranged about the vertical central axis of the guide rail body.

[0019] In summary, the present invention has the following main beneficial effects:

[0020] 1. This invention solves the problem of great inconvenience caused by repeated rotation when limiting the workpiece in existing length measuring machines by setting up a transmission rack, transmission gear plate, arc groove, sliding column, slider and rubber limit seat. When it is necessary to limit the slewing bearing, the magnetic temperature control box can be pushed. With the cooperation of the transmission gear plate, sliding column and slider, the slewing bearing can be limited. Under the magnetic attraction of the magnetic temperature control box, it can play a self-locking role, avoiding the inconvenience of repeated screw rotation in traditional length measuring instruments, improving its convenience and greatly reducing its limitations.

[0021] 2. This invention solves the problem of deviations in length measurement data caused by different indoor temperatures in existing length measuring machines by setting up a length measuring base, magnetic temperature control box, temperature control component, and temperature control probe. The temperature control probe can measure the air temperature inside the two sets of magnetic temperature control boxes, and control the temperature control component through the temperature control probe. The temperature control component can be activated, thereby accurately controlling the temperature inside the magnetic temperature control box, thus achieving temperature controllability. This avoids the reduction in the accuracy of length measurement values ​​due to temperature differences in traditional length measuring machines with simple structures, and improves the accuracy of length measurement.

[0022] 3. This invention, through the arrangement of an oil-distributing wheel, oil-distributing hole, transmission rod, return spring, connecting rod, pushing rod, corrugated hose, oil tank, inner fixing block, sleeve slide cylinder, and abutment ring, solves the problem of excessive wear in existing length measuring machines. By driving the second length measuring seat, when the oil-distributing wheel contacts the oil collection tank, the transmission rod and return spring work together, and the inner fixing block and sleeve slide cylinder work together to separate the oil-distributing wheel from the oil collection tank. This allows oil from inside the oil tank to enter the oil-distributing wheel and then be discharged through the oil-distributing hole, thus lubricating the inside of the support guide groove. When the oil-distributing tank contacts the oil collection tank, it can squeeze the oil inside, achieving a uniform distribution. Attached Figure Description

[0023] Figure 1 This is a perspective view of the length measuring machine body of the present invention;

[0024] Figure 2 This is a perspective view of the second length measuring component of the present invention;

[0025] Figure 3 This is a side sectional view of the second length measuring component of the present invention;

[0026] Figure 4 For the present invention Figure 3 A magnified view of part A in the image;

[0027] Figure 5 This is a perspective view of the internal fixing block of the present invention;

[0028] Figure 6 This is a side cross-sectional view of the stabilizing component of the present invention;

[0029] Figure 7 This is a top view of the length measuring seat of the present invention;

[0030] Figure 8 This is a top cross-sectional view of the length measuring base of the present invention.

[0031] In the diagram: 100, length measuring machine body; 110, guide rail body; 120, support guide rail groove; 121, oil accumulation groove;

[0032] 200. Length measuring component No. 1; 210. Length measuring base No. 1; 220. Length measuring head No. 1; 230. Length measuring head No. 2;

[0033] 300. Stabilizing component; 310. Measuring base; 311. Straight slide groove; 320. Magnetic temperature control box; 330. Transmission rack; 340. Transmission gear plate; 341. Arc groove; 350. Sliding column; 360. Sliding block; 370. Rubber limit seat; 380. Temperature control component; 390. Temperature control probe;

[0034] 400. Length measuring component No. 2; 410. Length measuring base No. 2; 420. Control console; 430. Oil distributor wheel; 431. Oil distributor hole; 440. Transmission rod; 441. Return spring; 450. Connecting rod; 460. Push rod; 470. Corrugated hose; 480. Oil tank; 481. Inner fixing block; 482. Sleeve slide; 483. Abutment ring. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of the present invention will now be described.

[0037] A temperature-controlled length measuring machine, such as Figure 1-8 As shown, the device includes a length measuring machine body 100, which includes a first length measuring component 200 and a stabilizing component 300 located on one side of the first length measuring component 200. A second length measuring component 400 is provided on the side of the stabilizing component 300 away from the first length measuring component 200.

[0038] The length measuring machine body 100 includes a guide rail body 110, a support guide rail groove 120 is provided on the side wall of the guide rail body 110, and multiple sets of oil accumulation grooves 121 are provided at the end of the support guide rail groove 120.

[0039] The first length measuring component 200 includes a first length measuring seat 210, and a first length measuring head 220 is provided at the top of the first length measuring seat 210;

[0040] The stabilizing component 300 includes a measuring base 310, two sets of transmission racks 330 sliding on the side wall of the measuring base 310, a transmission gear 340 rotating inside the measuring base 310 and meshing with the two sets of transmission racks 330, multiple sets of sliding columns 350 sliding at the end of the transmission gear 340, a slider 360 extending to the top of the measuring base 310 fixed at the end of the slider 350, a rubber limit seat 370 fixed at the top of the slider 360, a magnetic temperature control box 320 sleeved on the side wall of the transmission racks 330 and fitted onto the outer wall of the measuring base 310, a temperature control component 380 provided on the inner wall of the magnetic temperature control box 320, and a temperature control probe 390 provided on the inner wall of the magnetic temperature control box 320 below the temperature control component 380.

[0041] The second length measuring assembly 400 includes a second length measuring seat 410. Two sets of transmission rods 440 slide inside the second length measuring seat 410. An oil dispersing wheel 430 rotates on the side wall of the transmission rod 440 and contacts the oil collection tank 121. A return spring 441 is fixed between the transmission rod 440 and the inside of the second length measuring seat 410. A connecting rod 450 is fixed between the top ends of the two sets of transmission rods 440. A pushing rod 460 is fixed on the side wall of the connecting rod 450. An oil tank 480 is provided on the side wall of the second length measuring seat 410. An inner fixing block 481 is fixed on the inner wall of the oil tank 480. A sleeve cylinder 482 that slides on the inner wall of the oil tank 480 is sleeved on the side wall of the inner fixing block 481. A stop ring 483 that contacts the end of the pushing rod 460 is fixed at the bottom end of the sleeve cylinder 482. A corrugated hose 470 is fixed between the top end of the pushing rod 460 and the sleeve cylinder 482.

[0042] Multiple oil collection grooves 121 are equidistantly distributed at the ends of the support guide grooves 120. The inner wall of the support guide grooves 120 is in contact with the bottom of the second measuring seat 410. A control console 420 is provided at the top of the second measuring seat 410, and a second measuring head 230 is provided at the top of the control console 420. The second measuring head 230 is at the same horizontal position as the first measuring head 220. A display screen is provided on the top of the control console 420 on one side of the second measuring head 230. The side wall of the magnetic temperature control box 320 has an opening that connects to the first measuring head 220. The first measuring hole matches the first measuring hole. The magnetic temperature control box 320 has a second measuring hole on its other side that matches the second measuring head 230. The measuring base 310 has a guide groove on its side wall that matches the transmission rack 330. The transmission gear plate 340 has multiple sets of arc-shaped grooves 341 at its end that match multiple sets of sliding columns 350, and these arc-shaped grooves 341 are arranged in a ring array. The measuring base 310 has multiple sets of straight sliding grooves 311 at its end that match multiple sets of sliders 360, and these straight sliding grooves 311 are arranged in a ring array. The measuring base 310 has a workpiece to be measured on its top. A pair of magnetic blocks attract each other between two sets of magnetic temperature control boxes 320. Multiple temperature control components 380 are equidistantly distributed on the inner wall of the magnetic temperature control boxes 320. The side wall of the oil distributor 430 has multiple sets of oil dispersing holes 431 arranged in a ring array. The oil distributor 430 has an oil passage groove extending to the top of the push rod 460, with the other end of the groove connected to the multiple sets of oil dispersing holes 431. The sliding cylinder 482... The wall has two sets of external oil passage grooves, and the inner fixed block 481 has an inner oil passage groove on its side wall above the external oil passage grooves. The bottom of the oil tank 480 has a rotating groove that matches the sleeve cylinder 482. The top of the oil tank 480 is equipped with an oil cap. The guide rail body 110 has a threaded rod that rotates inside, and a handle is fixed at the end of the threaded rod. The bottom of the second measuring seat 410 is connected to the threaded rod by a thread. The bottom of the guide rail body 110 is fixed with two sets of bases, and the two sets of bases are symmetrically arranged about the vertical central axis of the guide rail body 110.

[0043] When testing is required, the workpiece can be placed on the top of the measuring base 310, and then the magnetic temperature control box 320 can be pushed. This causes the transmission rack 330, which is fixed to the side wall of the measuring base 310, to slide against the side wall of the measuring base 310. Since the transmission rack 330 and the transmission gear 340 mesh with each other, the transmission gear 340, which is rotatably connected inside the measuring base 310, can rotate. This pushes the sliding column 350 to slide inside the arc-shaped groove 341 at the end of the transmission gear 340, and pushes the slider 360, which is fixed to the top of the sliding column 350, to slide inside the straight groove 311. This allows multiple sets of rubber limiting seats 370 to gradually approach each other, clamping the workpiece to be measured. The magnetic blocks between the two sets of magnetic temperature control boxes 320 attract each other, achieving a self-locking effect. At this time, the temperature control probe 390 senses the temperature inside the magnetic temperature control box 320 and then controls the temperature control component 380 to control the temperature inside the magnetic temperature control box 320, achieving temperature controllability. When measuring the length of the workpiece, the second measuring component 400 needs to be moved so that the end of the second measuring seat 410 contacts the side wall of the workpiece. During this process, the second measuring... The seat 410 slides inside the support guide groove 120 opened on the side wall of the guide rail body 110. At this time, the side wall of the oil dispersing wheel 430 is in contact with the support guide groove 120 and the oil collection groove 121. When the oil dispersing wheel 430 is located between multiple sets of oil collection grooves 121, the transmission rod 440 rotatably connected to the side wall of the oil dispersing wheel 430 can be pushed to slide inside the second length measuring seat 410, thereby driving the connecting rod 450 and the pushing rod 460 fixed on its side wall to slide inside the second length measuring seat 410. At this time, the pushing rod 460 pushes the abutment ring 483 set at its end to slide, thereby causing the abutment ring 483 to slide. The top-fixed sleeve 482 slides on the inner wall of the oil tank 480. When the bottom of the inner oil groove coincides with the top of the outer oil groove, the lubricating oil inside the oil tank 480 can enter the oil passage groove through the sleeve 482 and then through the corrugated hose 470. Then it can be discharged through multiple sets of oil dispersing holes 431 opened on the side wall of the oil distributor 430. When the oil distributor 430 contacts the oil collection groove 121, the lubricating oil inside it can be squeezed to both sides of the oil collection groove 121 under the pushing action of the oil distributor 430, which can play a role in uniform coating, thereby achieving the function of quantitative oil dripping and sufficient lubrication.

[0044] In use, when testing the workpiece, place the workpiece on the top of the measuring base 310 and push the magnetic temperature control box 320 to clamp the workpiece. At this time, the temperature control probe 390 senses the temperature inside the magnetic temperature control box 320 and controls the temperature control component 380 to control the temperature inside the magnetic temperature control box 320, thus achieving temperature controllability. When measuring the length of the workpiece, the second length measuring component 400 needs to be moved. During this process, the lubricating oil inside the oil tank 480 can be discharged through multiple sets of oil distribution holes 431. When the oil distribution wheel 430 contacts the oil collection groove 121, the lubricating oil inside the oil collection groove 121 can be squeezed to both sides of the oil collection groove 121, which can play a role in evenly spreading the lubricating oil.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A temperature-controllable length measuring machine comprising a length measuring machine body (100), characterized in that: The length measuring machine body (100) includes a first length measuring assembly (200), and the length measuring machine body (100) includes a stabilizing assembly (300) located on one side of the first length measuring assembly (200), and the stabilizing assembly (300) is provided with a second length measuring assembly (400) away from one side of the first length measuring assembly (200); The length measuring machine body (100) includes a guide rail body (110), and a support guide rail groove (120) is formed in the side wall of the guide rail body (110), and a plurality of oil accumulation grooves (121) are formed in the end of the support guide rail groove (120); The first length measuring assembly (200) includes a first length measuring seat (210), and a first length measuring head (220) is arranged at the top end of the first length measuring seat (210); The stabilizing assembly (300) includes a measuring base (310), two groups of transmission racks (330) are slidably arranged on the side wall of the measuring base (310), a transmission tooth disc (340) is rotatably arranged in the measuring base (310) and engaged with the two groups of transmission racks (330), a plurality of slide columns (350) are slidably arranged at the end of the transmission tooth disc (340), a slide block (360) extending to the top end of the measuring base (310) is fixed at the end of the slide column (350), a rubber limiting seat (370) is fixed at the top end of the slide block (360), a magnetic attraction temperature control box (320) is fixed on the outer wall of the measuring base (310) and located on the side wall of the transmission rack (330), a temperature control assembly (380) is arranged on the inner wall of the magnetic attraction temperature control box (320), and a temperature control probe (390) is arranged below the temperature control assembly (380) on the inner wall of the magnetic attraction temperature control box (320); The second length measuring assembly (400) includes a second length measuring seat (410), two groups of transmission rods (440) are slidably arranged in the second length measuring seat (410), an oil scattering wheel (430) is rotatably arranged on the side wall of the transmission rod (440) and in contact with the oil accumulation groove (121), a return spring (441) is fixed between the transmission rod (440) and the second length measuring seat (410), a connecting rod (450) is fixed between the top ends of the two groups of transmission rods (440), a pushing rod (460) is fixed on the side wall of the connecting rod (450), an oil tank (480) is arranged on the side wall of the second length measuring seat (410), an inner fixing block (481) is fixed on the inner wall of the oil tank (480), a sleeve sliding cylinder (482) is sleeved on the side wall of the inner fixing block (481) and slidably arranged on the inner wall of the oil tank (480), a resisting ring (483) in contact with the end of the pushing rod (460) is fixed at the bottom end of the sleeve sliding cylinder (482), and a corrugated hose (470) is fixed between the top end of the pushing rod (460) and the sleeve sliding cylinder (482).

2. The temperature-controllable length measuring machine according to claim 1, characterized in that: A plurality of oil accumulation grooves (121) are equidistantly distributed at the end of the support guide rail groove (120), and the inner wall of the support guide rail groove (120) is in contact with the bottom end of the second length measuring seat (410).

3. The temperature-controllable length measuring machine according to claim 1, characterized in that: The second measuring base (410) is equipped with a control console (420) at its top. The control console (420) is equipped with a second measuring head (230) at its top. The second measuring head (230) and the first measuring head (220) are at the same horizontal position. The control console (420) is equipped with a display screen on one side of the second measuring head (230). The magnetic temperature control box (320) has a first measuring hole on its side wall that matches the first measuring head (220). The magnetic temperature control box (320) has a second measuring hole on the other side that matches the second measuring head (230).

4. The temperature-controllable length measuring machine according to claim 1, characterized in that: The measuring base (310) has a guide groove on its side wall that matches the transmission rack (330). The transmission gear plate (340) has multiple sets of arc grooves (341) at its end that match multiple sets of sliding columns (350), and the multiple sets of arc grooves (341) are arranged in a ring array. The measuring base (310) has multiple sets of straight sliding grooves (311) at its end that match multiple sets of sliding blocks (360), and the multiple sets of straight sliding grooves (311) are arranged in a ring array. The measuring base (310) has a workpiece to be measured at its top.

5. The temperature-controllable length measuring machine according to claim 1, characterized in that: A pair of magnetic blocks that attract each other are provided between the two sets of magnetic temperature control boxes (320), and multiple sets of temperature control components (380) are distributed at equal intervals on the inner wall of the magnetic temperature control box (320).

6. The temperature-controllable length measuring machine according to claim 1, characterized in that: The oil dispersing wheel (430) has multiple sets of oil dispersing holes (431) on its side wall, and the multiple sets of oil dispersing holes (431) are arranged in a ring array. The oil dispersing wheel (430) has an oil passage groove extending to the top of the push rod (460) inside, and the other end of the oil passage groove is connected to the multiple sets of oil dispersing holes (431).

7. The temperature-controllable length measuring machine according to claim 1, wherein: The inner wall of the sleeve (482) is provided with two sets of external oil passage grooves, the side wall of the inner fixing block (481) is provided with an inner oil passage groove above the external oil passage grooves, the bottom of the oil tank (480) is provided with a rotating groove that matches the sleeve (482), and the top of the oil tank (480) is provided with an oil cap.

8. The temperature-controllable length measuring machine according to claim 1, characterized in that: The guide rail body (110) has a threaded rod that rotates inside, and a handle is fixed at the end of the threaded rod. The bottom end of the second measuring seat (410) is connected to the threaded rod by a thread.

9. The temperature-controllable length measuring machine according to claim 1, characterized in that: The bottom of the guide rail body (110) is fixed with two sets of bases, and the two sets of bases are symmetrically arranged about the vertical central axis of the guide rail body (110).

Images