Gap-adjustable MV type guide rail set for thread rolling machine and thread rolling machine
By designing an adjustable gap MV-type guide rail group in the wire rolling machine, the problem of offset when the mount is sliding is solved, the processing accuracy is improved and the production cost is reduced.
Patent Information
- Application Number
- CN202421821590.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-30
AI Technical Summary
In existing wire rolling machines, the mounting seat is easily offset to both sides or upper parts when sliding, which affects the accuracy of wire rolling processing. Conventional limiting measures increase self-weight and structural complexity, and increase production costs.
A set of MV-type guide rails with adjustable gaps is designed. By installing two guide rails and sliders on both sides of the bottom of the mounting seat, and using the cooperation of V-shaped limiting grooves and protrusions, combined with the design of wedge-shaped blocks and slide grooves, the limit and fine adjustment of the left and right and upper and lower positions of the mounting seat are achieved.
It effectively prevents the mount from being offset when sliding, improves the processing accuracy of the wire rolling machine, does not require large-scale transformation, and reduces production costs.
Smart Images
Figure CN222856613U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thread rolling machines, in particular to an MV-type guide rail assembly for thread rolling machines with adjustable clearance and a thread rolling machine. Background Art
[0002] At present, thread rolling machines are usually used in the production of standard and non-standard parts such as screws, bolts, and through-wires. The main structure of the thread rolling machine includes a machine body, a pair of thread rolling shafts, and a thread rolling shaft seat that positions the thread rolling shafts on the machine body. The thread rolling shaft seat is equipped with a thread rolling die to start production. The thread rolling shaft, thread rolling shaft seat, and thread rolling die together constitute the main shaft component of the thread rolling machine, and the main shaft component is installed and fixed on the mounting seat.
[0003] In the prior art, the mounting seat of the thread rolling machine is horizontally slidably connected to the slide rail on the machine body. The two mounting seats move toward each other, thereby driving the two main shaft components to move toward each other, close to the product to be processed, and perform thread rolling on it. However, the slide rail adopts a conventional linear slide rail. When the thread rolling process is performed, the mounting seat is easily deflected to the sides of the slide rail or shifted upward due to external force, which will affect the position of the main shaft component of the thread rolling machine and the accuracy of the thread rolling process. In order to prevent the mounting seat from shifting upward, a crossbeam is usually installed on the top of the mounting seat to limit the mounting seat so that the mounting seat cannot shift upward, but this will increase the dead weight of the thread rolling machine and make the structure more complicated, increasing the production cost of the thread rolling machine. Utility Model Content
[0004] The purpose of the utility model is to solve the above problems, and an MV-type guide rail group and a thread rolling machine with adjustable gap are designed, which solves the problem that the mounting seat in the thread rolling machine is easy to deviate to the sides or the upper part when sliding.
[0005] The technical solution of the utility model to achieve the above-mentioned purpose is to provide an MV-type guide rail assembly for a thread rolling machine with an adjustable gap, wherein the MV-type guide rail assembly is used to be installed on both sides of the bottom of a mounting seat located on a thread rolling machine body, and comprises:
[0006] Two guide rails, the two guide rails are respectively located on both sides of the fuselage, and a limiting groove with a V-shaped cross-section is formed on one side of each guide rail close to the slide bar;
[0007] Two slide bars, the two slide bars are respectively fixed on both sides of the bottom of the mounting base and correspond to the two guide rails respectively, the guide rails are located between the slide bar and the fuselage, and a protrusion matching the shape of the limiting groove is formed on one side of the slide bar close to the guide rail, and the protrusion can slide along the extension direction of the limiting groove;
[0008] Each guide rail is provided with a clamping bolt for pressing the guide rail against the position of the slide bar, and the clamping bolt is threadedly connected to the fuselage. A slide groove is provided on the side of at least one guide rail away from the slide bar, and the depth of the slide groove gradually becomes shallower from one end of the guide rail to the other end. A wedge block is slidably connected in the slide groove, and the shape of the wedge block is adapted to the shape of the slide groove, and is matched with the slide groove in an inclined surface, and the two sides of the wedge block are in close contact with the guide rail and the fuselage respectively.
[0009] Preferably, a plurality of bolt holes are provided at the bottom of the slide bar, and a bolt is provided in each bolt hole. The bolt passes through the bolt hole and is threadedly connected to the bottom of the fuselage, thereby fixing the slide bar.
[0010] Preferably, a plurality of strip holes are provided on the side surface of the wedge block, and the strip holes extend along the moving direction of the wedge block. The locking bolts pass through the strip holes and abut against the wedge block.
[0011] Preferably, a plurality of positioning holes for positioning the tightening bolts are provided on a side of the guide rail away from the slide bar.
[0012] Preferably, the guide rail is provided with a plurality of through holes which penetrate vertically, each through hole is provided with a limiting bolt, the limiting bolt and the through hole are clearance-fitted, and the lower end of the limiting bolt is threadedly connected to the fuselage.
[0013] Preferably, a baffle is provided at the front end of the guide rail matched with the wedge block, and the baffle is fixed to the guide rail by bolts. An adjusting bolt is threadedly connected to the baffle, and the adjusting bolt is rotatably connected to the wedge block to drive the wedge block to move.
[0014] Preferably, a mounting plate is provided below the mounting seat, and the mounting plate is fixed to the bottom of the fuselage by bolts. A driving mechanism is provided on the mounting plate, and a driving end of the driving mechanism is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to a connecting piece, and the other end of the connecting piece passes through the fuselage and is fixedly connected to the bottom of the mounting seat.
[0015] Preferably, the fuselage is provided with an avoidance hole for allowing the connecting member to move.
[0016] Preferably, a fixing plate is provided on the side of the mounting seat, and a main shaft component is installed on the fixing plate.
[0017] The utility model also provides a thread rolling machine, comprising the MV-type guide rail group for the thread rolling machine with adjustable gap as described above.
[0018] Compared with the prior art, the beneficial effects are:
[0019] The MV type guide rail assembly in the utility model is used to be installed on a thread rolling machine, and the two guide rails are pushed toward the position of the slide bar by rotating the tightening bolts, and the gap between the slide bar and the guide rails is adjusted. Then, the wedge block is pushed to move the guide rail to offset to the position of the slide bar, and the gap between the slide bar and the guide rails is fine-tuned. The slide bar will be in close contact with the guide rails, and the two guide rails will clamp the two slide bars at the bottom of the mounting seat, so that the mounting seat cannot deviate to the left or right, and the V-shaped limit groove on the guide rail will cooperate with the protrusion on the slide bar to limit the upward deviation of the mounting seat. In this way, the spindle component will not deviate during the thread rolling process, and the mounting seat can be prevented from deviating without major modifications to the thread rolling machine, which can effectively improve the processing accuracy of the thread rolling machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the MV type guide rail assembly in the utility model when it is installed on the body of the thread rolling machine;
[0021] Figure 2 yes Figure 1 Schematic diagram of the structure when the fuselage is removed;
[0022] Figure 3 yes Figure 2 A structural diagram from another perspective;
[0023] Figure 4 This is a schematic diagram of the structure of one of the guide rails in the MV type guide rail group;
[0024] Figure 5 It is a schematic diagram of the structure of another guide rail in the MV type guide rail group;
[0025] Figure 6 It is a schematic diagram of the structure of the slide bar in the MV type guide rail assembly;
[0026] Figure 7 It is a schematic diagram of the structure of the wedge block.
[0027] In the figure, 1, fuselage; 2, mounting seat; 3, guide rail; 301, limit groove; 302, slide groove; 4, slide bar; 401, protrusion; 5, fixing plate; 6, main shaft component; 7, wedge block; 701, strip hole; 8, tightening bolt; 9, driving mechanism; 10, connecting rod; 11, connecting piece; 12, limit bolt; 13, baffle; 14, adjusting bolt; 15, mounting plate. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] like Figure 1 As shown, a preferred embodiment of the utility model proposes an MV type guide rail group for a thread rolling machine with an adjustable gap. The MV type guide rail group is used on the thread rolling machine. The thread rolling machine generally has two main shaft components 6, and the two main shaft components 6 are fixed on the mounting seat 2, and the mounting seat 2 is slidably connected to the body 1 of the thread rolling machine. The product to be processed will be placed between the two main shaft components 6, and the two main shaft components 6 move toward each other to approach the product to be processed, and the product is thread rolled. The MV type guide rail 3 group in this embodiment is installed on both sides of the bottom of the mounting seat 2, and is used for the sliding of the mounting seat 2, and can limit the left and right and up and down of the mounting seat 2.
[0030] like Figure 2 , Figure 3 As shown, the MV type guide rail assembly mainly includes two guide rails 3 and two slide bars 4. A plurality of bolt holes are provided at the bottom of the slide bar 4. A bolt is provided in each bolt hole. The two slide bars 4 are respectively fixed to the two sides of the bottom of the mounting base 2 by bolts. The two guide rails 3 correspond to the two slide bars 4 respectively. The guide rails 3 are located between the slide bars 4 and the fuselage 1. The slide bars 4 can slide horizontally along the guide rails 3.
[0031] refer to Figure 4-Figure 6 A V-shaped limiting groove 301 is formed on the side of the guide rail 3 close to the slide bar 4, so that the cross-sectional shape of the entire guide rail 3 is "M" shaped. At the same time, a protrusion 401 with a "V"-shaped cross-sectional shape is formed on the side of the slide bar 4 close to the guide rail 3, and the protrusion 401 is matched with the limiting groove 301. The protrusion 401 on the slide bar 4 can move forward and backward along the limiting groove 301 on the guide rail 3.
[0032] The slide bar 4 and the guide rail 3 can be connected by horizontal sliding, or a roller can be set on the slide bar 4, and the roller can roll along the groove surface of the limiting groove 301. The use of the roller connection method can reduce the friction between the slide bar 4 and the guide rail 3.
[0033] refer to Figure 2 , Figure 3, a plurality of tightening bolts 8 are arranged on the side of each guide rail 3, and a plurality of positioning holes corresponding to the positions of the tightening bolts 8 are also arranged on the side of the guide rail 3. The positioning holes are blind holes. The tightening bolts 8 are threadedly connected to the body 1 and inserted into the positioning holes to abut against the guide rails 3. The positioning holes play a role of positioning guide. By rotating the tightening bolts 8, the tightening bolts 8 will push the guide rails 3 on both sides of the mounting seat 2 to move toward each other, and adjust the gap between the slide bar 4 and the guide rails 3, so that the guide rails 3 and the slide bar 4 fit tightly. The two guide rails 3 will limit the left and right positions of the mounting seat 2. At the same time, the V-shaped limit grooves 301 on the guide rails 3 will perfectly match the protrusions 401 on the slide bar 4 to limit the up and down movement of the mounting seat 2, so that when the main shaft component 6 of the thread rolling machine is working, the up and down and left and right positions of the mounting seat 2 remain unchanged and will not be tilted outward due to external forces.
[0034] refer to Figure 5 A slide groove 302 is provided on one side of one of the guide rails 3 away from the slide bar 4. The slide groove 302 is wedge-shaped, and the depth of the slide groove 302 gradually becomes shallower from one end of the guide rail 3 to the other end. A wedge block 7 is provided in the slide groove 302. The wedge block 7 is horizontally slidably connected to the slide groove 302. The shape of the wedge block 7 is adapted to the shape of the slide groove 302. The wedge block 7 and the slide groove 302 are inclined. At the same time, a baffle 13 is provided at the front end of the guide rail 3. The baffle 13 is fixed to the guide rail 3 by bolts. The baffle 13 plays a role in limiting the wedge block 7 when it moves.
[0035] An adjusting bolt 14 is threadedly connected to the baffle 13, and one end of the adjusting bolt 14 is rotatably connected to the wedge block 7. When the adjusting bolt 14 is rotated, the wedge block 7 will be pushed or pulled to slide along the slide groove 302, and the two side surfaces of the wedge block 7 are in close contact with the groove surface of the slide groove 302 and the inner wall of the fuselage 1 respectively. When the wedge block 7 moves, it will push the guide rail 3 to deviate in the direction of the other guide rail 3, so that the two guide rails 3 will contact the two slide bars 4 at the bottom of the mounting seat 2 more closely, and the small gap between the slide bar 4 and the guide rail 3 is fine-tuned to ensure that the mounting seat 2 does not shake when sliding.
[0036] In other technical solutions, wedge blocks 7 and sliding grooves 302 may be provided on both guide rails 3 .
[0037] refer to Figure 7 A plurality of strip holes 701 corresponding to the positions of the clamping bolts 8 are also provided on the side of the wedge block 7. The strip holes 701 extend along the moving direction of the wedge block 7. The strip holes 701 mainly serve to avoid the clamping bolts 8 and prevent the clamping bolts 8 from interfering with the wedge block 7 when it moves.
[0038] like Figure 2 , Figure 3As shown, in order to limit the upper and lower positions of the guide rails 3, a plurality of through holes extending vertically therethrough are provided on each guide rail 3, and a limiting bolt 12 is provided in each through hole. The lower end of the limiting bolt 12 is threadedly connected to the fuselage 1, and the limiting bolt 12 and the through hole are clearance-matched, that is, the aperture of the through hole is slightly larger than the diameter of the limiting bolt 12, which will not hinder the tightening bolt 8 and the wedge block 7 from pushing the guide rail 3 to move laterally.
[0039] A fixing plate 5 is arranged on the front of the mounting seat 2, and the main shaft component 6 of the thread rolling machine is mounted on the fixing plate 5. A mounting plate 15 is arranged below the mounting seat 2, and the mounting plate 15 is fixed to the bottom of the machine body 1 by bolts, and a driving mechanism 9 is installed on the mounting plate 15. The driving mechanism 9 adopts an electric cylinder, and the slide plate on the electric cylinder is rotatably connected to the connecting rod 10, and a connecting member 11 is rotatably connected to the other end of the connecting rod 10, and the connecting member 11 will pass through the strip-shaped avoidance hole on the machine body 1 and be fixedly connected to the bottom of the mounting seat 2, and the slide plate is driven to move by the electric cylinder, thereby driving the mounting seat 2 to slide along the guide rail 3 through the connecting member 11.
[0040] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.
Claims
1. An MV type guide rail assembly for a thread rolling machine with an adjustable gap, the MV type guide rail assembly being used to be mounted on both sides of the bottom of a mounting seat (2) located on a thread rolling machine body (1), characterized in that: include: Two guide rails (3), the two guide rails (3) are respectively located on two sides of the fuselage (1), and a limiting groove (301) with a V-shaped cross-section is formed on one side of each guide rail (3) close to the slide bar (4); Two slide bars (4), the two slide bars (4) are respectively fixed on two sides of the bottom of the mounting seat (2), and respectively correspond to the two guide rails (3), the guide rails (3) are located between the slide bars (4) and the body (1), and a protrusion (401) that matches the shape of the limiting groove (301) is formed on one side of the slide bar (4) close to the guide rail (3), and the protrusion (401) can slide along the extension direction of the limiting groove (301); Each guide rail (3) is provided with a clamping bolt (8) for pressing the guide rail (3) against the position of the slide bar (4), and the clamping bolt (8) is threadedly connected to the fuselage (1). A slide groove (302) is provided on the side of at least one guide rail (3) away from the slide bar (4), and the depth of the slide groove (302) gradually becomes shallower from one end of the guide rail (3) to the other end. A wedge block (7) is slidably connected in the slide groove (302), and the shape of the wedge block (7) is adapted to the shape of the slide groove (302) and is matched with the slide groove (302) in an inclined surface. The two sides of the wedge block (7) are in close contact with the guide rail (3) and the fuselage (1) respectively.
2. The MV type guide rail assembly for a thread rolling machine with adjustable gap according to claim 1, characterized in that: A plurality of bolt holes are provided at the bottom of the slide bar (4), each of the bolt holes being provided with a bolt, and the bolt passes through the bolt hole and is threadedly connected to the bottom of the fuselage (1), thereby fixing the slide bar (4).
3. The MV type guide rail assembly for a thread rolling machine with adjustable gap according to claim 1, characterized in that: A plurality of strip holes (701) are provided on the side surface of the wedge block (7), and the strip holes (701) extend along the moving direction of the wedge block (7). The abutting bolts (8) pass through the strip holes (701) and abut against the wedge block (7).
4. The MV type guide rail assembly for a thread rolling machine with adjustable gap according to claim 3, characterized in that: A plurality of positioning holes for positioning the tightening bolts (8) are also provided on the side of the guide rail (3) away from the slide bar (4).
5. The MV type guide rail assembly for a thread rolling machine with adjustable gap according to claim 1, characterized in that: The guide rail (3) is provided with a plurality of through holes extending vertically therethrough, each through hole being provided with a limiting bolt (12), the limiting bolt (12) and the through hole being in clearance fit, and the lower end of the limiting bolt (12) being threadedly connected to the fuselage (1).
6. The MV type guide rail assembly for a thread rolling machine with adjustable gap according to claim 1, characterized in that: A baffle (13) is provided at the front end of the guide rail (3) matched with the wedge block (7). The baffle (13) is fixed to the guide rail (3) by bolts. An adjusting bolt (14) is threadedly connected to the baffle (13). The adjusting bolt (14) is rotatably connected to the wedge block (7) to drive the wedge block (7) to move.
7. The MV type guide rail assembly for a thread rolling machine with adjustable gap according to claim 1, characterized in that: A mounting plate (15) is provided below the mounting seat (2), and the mounting plate (15) is fixed to the bottom of the fuselage (1) by means of bolts. A driving mechanism (9) is provided on the mounting plate (15), and a driving end of the driving mechanism (9) is rotatably connected to a connecting rod (10), and the other end of the connecting rod (10) is rotatably connected to a connecting member (11), and the other end of the connecting member (11) passes through the fuselage (1) and is fixedly connected to the bottom of the mounting seat (2).
8. The MV type guide rail assembly for a thread rolling machine with adjustable gap according to claim 6, characterized in that: The body (1) is provided with an escape hole for allowing the connecting member (11) to move.
9. The MV type guide rail assembly for a thread rolling machine with adjustable gap according to claim 1, characterized in that: A fixing plate (5) is provided on the side of the mounting seat (2), and a main shaft component (6) is installed on the fixing plate (5).
10. A thread rolling machine, characterized in that: An MV type guide rail assembly for a thread rolling machine with an adjustable gap as described in any one of claims 1 to 9.