Ball screw deflector mounting device

Abstract

The utility model discloses a ball screw deflector installation device which comprises a guide rail base, a guide rail is installed on the guide rail base, a supporting block is detachably installed on the guide rail base, a fixing base is arranged on the top of the supporting block, and a horizontal installation hole is formed in the fixing base. Two positioning holes and one auxiliary positioning hole which are communicated with the horizontal mounting hole are formed in the top surface of the fixed seat, the two positioning holes are formed corresponding to the two ends of the horizontal mounting hole, a positioning block is arranged at the top of the fixed seat, two positioning pin rods and one auxiliary positioning pin are arranged at the bottom of the positioning block, and the positioning pin rods are matched with the positioning holes. The auxiliary positioning pins are matched with the auxiliary positioning holes, and positioning mechanisms are symmetrically arranged on the two sides of the fixing base. According to the utility model, the installation of cover plate type ball screw deflectors with different specifications can be realized; deflectors at the two ends can be installed at the same time through one-time nut clamping; and by arranging the auxiliary positioning pin, the positioning pin rod is prevented from inclining when the deflector is installed, and the installation precision of the deflector can be improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of ball screw deflector installation, and in particular relates to a ball screw deflector installation device. Background Technology

[0002] Ball screws are a common linear transmission element widely used in machine tools, aerospace, automotive and other fields. Because the transmission medium is steel balls, which undergo rolling friction between the screw and nut, ball screws offer high transmission accuracy and efficiency.

[0003] Common ball screw types include internal circulation type, insert type, and end cap type, with the appropriate type chosen based on different space requirements. The principle of the end cap type ball screw is similar to that of the insert type, but the difference lies in that the end cap type ball screw uses a deflector instead of an insert to guide the steel balls into the return groove between the nut and the end cap, allowing the steel balls to circulate between the screw, nut, and end cap. The deflector is generally fixed to the nut by an interference fit between its outer surface and the nut's helical groove. The installation position of the deflector is crucial for ensuring smooth, unobstructed circulation of the steel balls. Furthermore, to prevent the deflector from changing position under the impact of the steel balls, the relative motion resistance between the two must be very high. This means that installing the deflector into the nut is very difficult, which is detrimental to the conversion efficiency and cost control of the end cap type ball screw.

[0004] Therefore, addressing the shortcomings of the existing technologies has become the focus of efforts for those skilled in the field. Utility Model Content

[0005] The purpose of this invention is to provide a ball screw deflector mounting device that can completely solve the shortcomings of the prior art.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A ball screw deflector mounting device includes a guide rail base, on which a guide rail is mounted. A support block is detachably mounted on the guide rail base. A fixed seat is provided on the top of the support block. A horizontal mounting hole is provided on the fixed seat. Two positioning holes and one auxiliary positioning hole are opened on the top surface of the fixed seat, communicating with the horizontal mounting hole. The two positioning holes are opened at the two ends corresponding to the horizontal mounting hole. A positioning block is provided on the top of the fixed seat. Two positioning pins and one auxiliary positioning pin are provided at the bottom of the positioning block. The positioning pins cooperate with the positioning holes, and the auxiliary positioning pin cooperates with the auxiliary positioning hole. Positioning mechanisms are symmetrically provided on both sides of the fixed seat.

[0008] Furthermore, the mounting base is provided with a pin hole that communicates with the horizontal mounting hole.

[0009] Further, the horizontal mounting hole is provided with a stop.

[0010] Further, the top surface of the fixing seat is provided with a gap connected to the horizontal mounting hole, and a locking screw is arranged on the fixing seat corresponding to the gap.

[0011] Further, the guide rail base comprises a middle base and end bases, the middle base is arranged in the middle of the guide rail, and the end bases are arranged at the bottom of both ends of the guide rail, and a plurality of connecting holes are formed in the end bases.

[0012] Further, the positioning mechanism comprises an adapter block, a quick clamp, a guide rail slider, a heightening block, a moving seat, a shaft sleeve and a push rod, the adapter block is fixedly connected to the end base, the quick clamp is mounted on the adapter block, the guide rail slider is slidingly fitted on the guide rail, the heightening block is fixedly connected to the guide rail slider, the quick clamp is connected to the heightening block, a spring is arranged between the adapter block and the heightening block, the moving seat is mounted on the top of the heightening block, a shaft sleeve hole is formed in the moving seat, one end of the shaft sleeve is inserted into the shaft sleeve hole, the other end of the shaft sleeve is opposite to the horizontal mounting hole, a locking screw is arranged on the moving seat, one end of the push rod penetrates into the shaft sleeve hole and extends into the shaft sleeve, and a screw boss is arranged at the end of the push rod.

[0013] Further, the cross-sectional profile of the screw boss is the same as that of the deflector.

[0014] Further, the other end of the push rod opposite to the screw boss is provided with a force wrench.

[0015] Further, the inner hole of the shaft sleeve is provided with a screw groove with the same shape as that of the nut, and the groove depth of the screw groove in the inner hole of the shaft sleeve is greater than that of the screw groove on the nut.

[0016] Further, the quick clamp comprises a clamp body, a push rod, a handle, a left connecting plate and a right connecting plate, a horizontal through hole is arranged at the end of the clamp body, the push rod is slidingly fitted with the horizontal through hole, the bottom end of the handle has a horizontal section, one end of the horizontal section is connected with the end of the clamp body through a rotating shaft, the other end of the horizontal section is connected with one end of the left and right connecting plates through a rotating shaft, the other end of the left and right connecting plates is connected with one end of the push rod through a rotating shaft, the other end of the push rod is threadedly connected with an adjusting screw, and the end of the adjusting screw is connected with the heightening block through rotation.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] 1. The nut can simultaneously mount the two ends of the deflector at one time;

[0019] 2. The quick clamp shortens the mounting time and improves the assembly efficiency;

[0020] 3. The auxiliary positioning pin is arranged to prevent the positioning pin rod from being inclined during the mounting of the deflector, and the mounting precision of the deflector is improved;

[0021] 4. The installation of different specifications of cover plate type ball screw deflector can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 is Figure 1 the enlarged view of A in figure 1;

[0024] Figure 3 is a sectional view of the utility model;

[0025] Figure 4 is the position relation diagram of the nut, shaft sleeve and thrust rod when installing the deflector;

[0026] Figure 5 is the structure schematic diagram of the positioning block in the utility model;

[0027] Figure 6 is the structure schematic diagram of the nut;

[0028] Figure 7 is the structure schematic diagram of the fixed seat in the utility model;

[0029] Figure 8 is the structure schematic diagram of the thrust rod and the deflector in the utility model. DETAILED DESCRIPTION

[0030] Exemplary embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0031] As Figures 1 to 8 shown, a ball screw deflector mounting device comprises a guide rail base, a guide rail 1 is installed on the guide rail base, a support block 2 is detachably installed on the guide rail base through a screw, a fixed seat 3 is arranged on the top of the support block 2, a horizontal mounting hole 4 is arranged on the fixed seat 3, two positioning holes 5 and one auxiliary positioning hole 6 are arranged on the top surface of the fixed seat 3 and communicate with the horizontal mounting hole 4, the two positioning holes 5 are arranged at the two ends of the horizontal mounting hole 4, a positioning block 7 is arranged on the top of the fixed seat 3, two positioning pins 71 and one auxiliary positioning pin 72 are arranged on the bottom of the positioning block 7, the positioning pins 71 are matched with the positioning holes 5, the auxiliary positioning pin 72 is matched with the auxiliary positioning hole 6, and a positioning mechanism is symmetrically arranged on both sides of the fixed seat 3.

[0032] In the embodiment, the horizontal mounting hole 4 is used for clamping the nut 8, and a gap 9 is arranged on the top surface of the fixing base 3 and communicated with the horizontal mounting hole 4. A locking screw 10 is arranged on the fixing base 3 corresponding to the gap 9. The nut 8 is fixed in the horizontal mounting hole 4 by screwing the locking screw 10. See Figure 7 A pin hole 11 is arranged on the fixing base 3 and communicated with the horizontal mounting hole 4. The pin hole 11 and the pin hole on the outer circle of the nut 8 are matched to axially position the nut 8. When the outer circle of the nut 8 has no pin hole, a stop can be arranged on the horizontal mounting hole 4 to position the nut 8.

[0033] When the deflector 28 is assembled, the two positioning pin rods 71 are inserted into the back bead holes 12 at both ends of the nut 8 to determine the mounting position of the deflector 28, and the auxiliary positioning pin 72 is inserted into the positioning hole 13 on the surface of the nut to prevent the positioning pin rod 71 from tilting during the mounting of the deflector 28 to cause the mounting position to change, thereby improving the mounting accuracy of the deflector 28. Specifically, since the back bead hole 12 of the nut 8 has a tolerance, the outer diameter of the positioning pin rod 71 needs to be smaller than the lower tolerance of the back bead hole 12 to enable the positioning pin rod 71 to be inserted into the back bead hole 12. Therefore, during actual assembly, there is a gap between the two positioning pin rods 71 and the back bead hole 12. When the deflector 28 is placed on the positioning pin rod 71, the positioning pin rod 71 will tilt to a certain extent. The embodiment adds the auxiliary positioning pin 72 to form a three-point positioning plane, and the gap between the auxiliary positioning pin 72 and the positioning hole 13 is smaller than the gap between the positioning pin rod 71 and the back bead hole 12, thereby preventing the positioning pin rod 71 from tilting and improving the positioning accuracy.

[0034] In the embodiment, the guide rail base includes a middle base 14 and an end base 15. The middle base 14 is arranged in the middle of the guide rail 1, and the end base 15 is arranged at the bottom of both ends of the guide rail 1. A plurality of connecting holes 16 are arranged on the end base 15.

[0035] In the embodiment, the positioning mechanism comprises an adapter block 17, a quick clamp 18, a guide rail slider 19, a heightening block 20, a moving seat 21, a shaft sleeve 22 and a thrust rod 23, the adapter block 17 is fixedly connected to the end base 15, the quick clamp 18 is installed on the adapter block 17, the guide rail slider 19 is slidingly fitted on the guide rail 1, the heightening block 20 is fixedly connected with the guide rail slider 19, the movable end of the quick clamp 18 is connected with the heightening block 20, the spring 24 is arranged between the adapter block 17 and the heightening block 20, and the spring 24 is used for automatically resetting the moving seat 21 after the quick clamp 18 is loosened, so that the assembly efficiency is improved, the moving seat 21 is installed on the top of the heightening block 20, the shaft sleeve hole is formed in the moving seat 21, one end of the shaft sleeve 22 is inserted into the shaft sleeve hole, the other end of the shaft sleeve 22 is opposite to the horizontal mounting hole 4, the set screw 25 is arranged on the moving seat 21, the set screw 25 is used for fixing the shaft sleeve 22, and one end of the thrust rod 23 penetrates into the shaft sleeve hole and extends into the shaft sleeve 22, and the helical boss 26 is arranged at the end.

[0036] The adapter block 17 is fixedly connected to the end base 15 by means of the connecting holes 16 on the end base 15, and a plurality of connecting holes 16 are formed in the end base 15, so that the installation of the cover plate type ball screw deflector with different specifications can be matched.

[0037] The cross-sectional profile of the helical boss 26 is the same as that of the deflector 28, and the helical boss 26 is used for driving the deflector 28 to be screwed into the nut 8. The helical boss 26 is a convex shaft extending outward at the end of the thrust rod 23, and a helical groove is arranged at the end of the convex shaft.

[0038] The other end of the thrust rod 23 relative to the helical boss 26 is provided with the force adding wrench 27. The end head 2301 is arranged at the end of the thrust rod 23, and the matching hole 2302 is formed in the end head 2301. The force adding wrench 27 comprises a long shaft and limiting heads arranged at two ends of the long shaft, and the long shaft is movably fitted in the matching hole 2302. The size of the force arm is adjusted by adjusting the position of the long shaft in the matching hole 2302, so that the labor-saving effect is achieved.

[0039] The inner hole of the shaft sleeve 22 is provided with a helical groove with the same shape as that of the nut 8, and the helical groove is used for guiding the installation of the deflector 28. The groove depth of the helical groove in the inner hole of the shaft sleeve 22 is greater than that of the helical groove on the nut 8, so that the deflector 28 can be placed into the inner hole of the shaft sleeve.

[0040] In the embodiment, the quick clamp 18 comprises a clamp body 181, a push rod 182, a handle 183, a left connecting plate 184 and a right connecting plate 185, a horizontal through hole 186 is arranged at the end of the clamp body 181, the push rod 182 is in sliding fit with the horizontal through hole 186, the handle 183 is provided with a horizontal section 187 at the bottom end, one end of the horizontal section 187 is connected with the end of the clamp body 181 through a rotating shaft, the other end is connected with one end of the left and right connecting plates 184 and 185 through a rotating shaft, the other end of the left and right connecting plates 184 and 185 is connected with one end of the push rod 182 through a rotating shaft, the other end of the push rod 182 is connected with an adjusting screw 188 through screw connection, and the end of the adjusting screw 188 is connected with the heightening block 20 through rotation.

[0041] The handle 183 is pulled leftward and rightward to drive the push rod 182 to move forward and backward, so that the moving seat 21 is driven by the heightening block 20 to move close to or away from the fixed seat 3, and the heightening block 20 moves forward and backward along the guide rail 1 through the guide rail sliding block 19.

[0042] When the deflector 28 is assembled, the nut 8 is placed in the horizontal mounting hole 4 of the fixed seat 3, then the deflector 28 is screwed into the inner hole of the shaft sleeve 22, the handle 183 of the quick clamp is pressed down, the shaft sleeve 22 is butted at two ends of the nut 8 through the push rod 182, the push rod 23 is rotated, the helical boss 26 at the front end of the push rod 23 is in contact with the end face of the deflector 28, the deflector 28 is slowly screwed into the nut 8 by continuously rotating the push rod 23, until the end face of the deflector 28 is in contact with the positioning pin rod 71, then the push rod 23 is rotated in the opposite direction to make the push rod 23 exit the nut helical groove, finally the handle 183 of the quick clamp is pulled up, and the moving seat 21 is reset by the spring 24, so that the installation of the deflector 28 is completed.

[0043] The nut is clamped once, and the deflector at two ends can be simultaneously installed; the clamping time is shortened through the quick clamp, and the assembly efficiency is improved; the auxiliary positioning pin is arranged, the positioning pin rod is prevented from being inclined during installation of the deflector, and the installation precision of the deflector is improved.

[0044] Similarly, it is to be understood that the embodiments of the application can be adapted to perform one or more of the aspects of the inventive aspects described herein, and that not all embodiments of the application necessarily include all of the features that are described in connection with one or more of the embodiments described herein. Furthermore, it is to be understood that not all aspects of the application necessarily have to be performed in the order described in the description herein above. In other words, the order of the steps recited in the description of the various embodiments of the application is not essential to the application. It is to be understood that the application is defined by the claims and it includes both the specific embodiments described herein as well as modifications thereof. Further, it is to be understood that where the application, or portions thereof, is / are described with respect to a set of parameters, other parameters can be used that would provide essentially equivalent functionality. It is to be understood that the application is not limited to particular embodiments described herein as such may, of course, vary. The application is not to be restricted, except as by the appended claims.

[0045] Those skilled in the art will appreciate that the modules in the apparatuses in the embodiments can be adapted to be changed and arranged in one or more apparatuses other than the embodiments. The modules or units or components in the embodiments can be combined into one module or unit or component, and further can be divided into multiple sub-modules or sub-units or sub-components. Any combination of all the features disclosed in the specification (including the accompanying claims, abstract and drawings), and any method or apparatus so disclosed, can be made except that at least some of such features and / or processes are mutually exclusive. Unless explicitly stated otherwise, each feature disclosed in the specification (including the accompanying claims, abstract and drawings) can be replaced by alternative features that provide the same, equivalent or similar functionality.

[0046] Further, those skilled in the art will appreciate that, although some embodiments herein include certain features in common with other embodiments but not others, combinations of features of different embodiments are contemplated as within the scope of the application and forming different embodiments.

[0047] It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that one skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps other than those listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of both hardware and software, and any combination thereof. In a unit claim, any reference signs placed between parentheses shall not be construed as limiting the claim. The use of the word "about" followed by a value and / or a unit of measure shall not be construed as intending to limit the value and / or unit of measure to the value and / or unit of measure specifically recited. The use of the word "about" followed by a value and / or a unit of measure shall not be construed as intending to limit the value and / or unit of measure to the value and / or unit of measure specifically recited and not to include other, different values and / or units of measure.

[0048] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ball screw deflector mounting device, characterized by: The utility model provides a guide rail base is provided with a guide rail, and the guide rail base is detachably provided with a supporting block, the top of the supporting block is provided with a fixing base, the fixing base is provided with a horizontal mounting hole, the top surface of the fixing base is provided with two positioning holes and an auxiliary positioning hole which are communicated with the horizontal mounting hole, the two positioning holes are arranged at the two ends of the horizontal mounting hole, the top of the fixing base is provided with a positioning block, the bottom of the positioning block is provided with two positioning pins and an auxiliary positioning pin, the positioning pins are matched with the positioning holes, the auxiliary positioning pin is matched with the auxiliary positioning hole, and the positioning mechanism is symmetrically arranged on the both sides of the fixing base.

2. The ball screw deflector mounting device of claim 1, wherein: The fixing base is provided with a pin hole communicated with the horizontal mounting hole.

3. The ball screw deflector mounting device of claim 1, wherein: The horizontal mounting hole is provided with a stop.

4. Ball screw deflector mounting device according to claim 2 or 3, characterized in that: The top surface of the fixing base is provided with a gap communicated with the horizontal mounting hole, and the fixing base is provided with a locking screw corresponding to the gap.

5. The ball screw deflector mounting device of claim 4, wherein: The guide rail base comprises a middle base and an end base, the middle base is arranged in the middle of the guide rail, the end base is arranged at the bottom of the two ends of the guide rail, and a plurality of connecting holes are formed in the end base.

6. The ball screw deflector mounting device of claim 5, wherein: The positioning mechanism comprises an adapter block, a quick clamp, a guide rail slider, a heightening block, a moving seat, a shaft sleeve and a thrust rod, the adapter block is fixedly connected to the end base, the quick clamp is arranged on the adapter block, the guide rail slider is slidingly matched with the guide rail, the heightening block is fixedly connected with the guide rail slider, the quick clamp is connected with the heightening block, a spring is arranged between the adapter block and the heightening block, the moving seat is arranged on the top of the heightening block, a shaft sleeve hole is formed in the moving seat, one end of the shaft sleeve is inserted into the shaft sleeve hole, the other end of the shaft sleeve is opposite to the horizontal mounting hole, a locking screw is arranged on the moving seat, one end of the thrust rod penetrates into the shaft sleeve hole and extends into the shaft sleeve, and a screw boss is arranged at the end of the thrust rod.

7. The ball screw deflector mounting device of claim 6, wherein: The cross-sectional profile of the screw boss is the same as that of the deflector.

8. The ball screw deflector mounting device of claim 6, wherein: The other end of the thrust rod opposite to the screw boss is provided with a force increasing wrench.

9. The ball screw deflector mounting device of claim 6, wherein: A screw groove with the same shape as the nut is arranged in the inner hole of the shaft sleeve, and the groove depth of the screw groove is greater than that of the screw groove on the nut.

10. The ball screw deflector mounting device of claim 6, wherein: The quick clamp comprises a clamp body, a push rod, a handle, a left connecting plate and a right connecting plate, a horizontal through hole is arranged at the end of the clamp body, the push rod is slidingly matched with the horizontal through hole, the bottom end of the handle has a horizontal section, one end of the horizontal section is connected with the end of the clamp body through a rotating shaft, the other end of the horizontal section is connected with one end of the left and right connecting plates through a rotating shaft, the other end of the left and right connecting plates is connected with one end of the push rod through a rotating shaft, the other end of the push rod is threadedly connected with an adjusting screw, and the end of the adjusting screw is connected with the heightening block through rotation.

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