Electric injection table lead screw and bearing buffering device
By installing a buffer pad at the contact point between the lead screw and the bearing of the electric injection unit and combining it with a lubrication system, the problem of rigid impact between the lead screw and the bearing is solved, achieving stable operation and durability of the equipment, and reducing wear and noise.
Patent Information
- Application Number
- CN202520520197.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The lack of a buffer structure between the lead screw and bearing in existing electric injection units leads to rigid impacts, causing wear, vibration, and noise, which affects machining accuracy and equipment lifespan.
A buffer pad is installed at the contact point between the lead screw and the bearing, and the connection is fixed by a lock nut. Combined with the lubrication system, real-time oil supply is achieved, which reduces rigid impact and maintains good lubrication.
It effectively protects bearings, reduces wear and noise, ensures equipment operation stability and precision, and avoids displacement errors caused by vibration.
Smart Images
Figure CN223918492U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric injection bench technical field, concretely is a kind of electric injection bench screw rod and bearing buffer device. BACKGROUND
[0002] Electric injection bench is a kind of device commonly used in injection molding machine, mainly through accurate thrust control, material is injected into mold to complete forming process.The injection bench principle is through servo motor to drive screw rod rotation, screw rod nut is stressed after rotating motion is converted into linear motion, realizes the axial movement of injection bench.
[0003] The structure of electric injection bench screw rod on the market at present, rigid connection is mostly between screw rod and bearing, lack effective buffer structure, when axial thrust is generated in screw rod, reaction force is directly applied to bearing, causing greater rigid impact in screw rod and bearing contact part, this impact not only can cause the rapid wear of bearing or screw rod, also can cause vibration and noise in equipment running process, affect processing precision and stability, long-time rigid impact is easy to cause bearing to be stuck and even failure, further reduce equipment life.
[0004] Therefore, electric injection bench screw rod and bearing buffer device are needed to solve the above technical defects. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of electric injection bench screw rod and bearing buffer device to solve the problem of greater rigid impact in screw rod and bearing contact part as described in the above background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of electric injection bench screw rod and bearing buffer device, including shell and installation injection bench, the shell bottom end is fixedly connected with installation injection bench, the shell inside is fixedly connected with bearing, the bearing is movably connected with screw rod in it, the screw rod outside is sleeved with screw rod nut, the screw rod is installed with buffer pad at its shaft shoulder, the bearing is contacted with buffer pad, the screw rod, bearing and buffer pad are fixedly connected in shell by lock nut, the shell is fixed with shaft coupling in the outer ring of screw rod top, the bearing and shell are fixedly connected with sealing flange, the screw rod top is integrally processed with connecting shaft.
[0007] As a further technical scheme of the utility model, the shell left side is fixedly connected with two groups of supports, the support is welded with lap strip between, the lap strip top is clamped with oil box, the oil box top end is provided with oil hole, the oil box one end is installed with solenoid valve, the solenoid valve output end is connected with hose, the hose bottom end is connected with oil injection pipe, the shell outer wall is processed with screw rod nut, the oil injection pipe is bent and extended to the inside of shell at screw rod nut.
[0008] As a further technical scheme of the utility model, the support is two groups of right-angled triangle frame bodies, the two groups of supports are parallel to each other and perpendicular to the overlapping strip.
[0009] As a further technical scheme of the utility model, the oil injection pipe top end is fixedly connected with a clamping block, the support outer wall is welded with a fixed ring, the fixed ring inner wall is processed with clamping teeth matched with the clamping block.
[0010] As a further technical scheme of the utility model, the clamping block and the fixed ring are clamped and matched, and the rotatable angle of the clamping block in the clamping teeth is 0-360°.
[0011] As a further technical scheme of the utility model, four guide holes are arranged in the four corners of the installation shooting platform respectively, guide columns are movably sleeved with the guide holes, and the guide columns are arranged in four groups and distributed around the lead screw.
[0012] As a further technical scheme of the utility model, the guide column bottom end is fixedly connected with a socket, and the socket bottom end is welded with a bottom plate.
[0013] As a further technical scheme of the utility model, the socket and the guide column are fixedly connected with a fixing screw, and the bottom plate is provided with a through slot.
[0014] Compared with the prior art, the electric shooting platform lead screw and bearing buffer device has the advantages that the rigid impact of the lead screw and the bearing is reduced, the operation is more stable and durable, the friction heat and wear are reduced, manual lubrication is not required, and displacement errors caused by vibration or lateral force are avoided.
[0015] (1) The lead screw, the bearing, the locking nut, the buffer pad and the lead screw nut are arranged, the buffer pad is arranged at the shaft shoulder of the lead screw, the inner ring of the bearing is in contact with the buffer pad, another buffer pad is arranged at the other end of the bearing, the lead screw, the bearing and the buffer pad are connected together through the locking nut with a certain pre-tightening force during installation, when the lead screw rotates, the lead screw moves axially and generates a thrust force due to the action of the lead screw nut, at this time, the reaction force acts on the bearing through the buffer pad, due to the existence of the buffer pad, the direct contact between the lead screw and the bearing is avoided when the axial force is applied, the important parts are effectively protected, and due to the fact that the material of the buffer pad is softer than the lead screw and the bearing, the rigid impact of the lead screw and the bearing is effectively reduced, and the operation is more stable and durable.
[0016] (2) by being provided with a shell, screw nut, support, oil filling hole, oil box, electromagnetic valve, hose, fixing ring, oil injection pipe, the shell is fixed by the support outside the lap joint strip, the lap joint strip is equipped with the oil box, the staff injects lubricating oil from the oil filling hole at the top of the oil box, the lubricating oil flows into the oil injection pipe through the hose, the oil injection pipe can position the oil injection angle and position through the clamping teeth and clamping block of the fixing ring, and is evenly distributed to the outer surface with the rotation of the screw rod, in the equipment operation process, the electromagnetic valve controls the release of lubricating oil according to the electromagnetic signal, realizes real-time oil supply, ensures that the screw rod can still maintain good lubrication under high load operation, effectively reduces friction heat and wear, does not need to stop artificial lubrication, avoids mechanical failure caused by untimely lubrication;
[0017] (3) by being provided with a shell, guide column, guide hole, socket, bottom plate, through slot, fixing screw, the shell moves under the drive of the screw nut, the guide column of the installation shooting platform four corners is movably sleeved in the guide hole of the shell, forming a guide auxiliary structure, when the equipment runs, the guide column limits the deviation of the installation shooting platform in the moving process, so that the movement path of the electric shooting platform always remains stable and straight, avoids displacement error caused by vibration or lateral force. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the front view cross section structure schematic diagram of the buffer pad of the utility model;
[0019] Figure 2 It is the front view structure schematic diagram of the utility model;
[0020] Figure 3 It is the oil box front view structure schematic diagram of the utility model;
[0021] Figure 4 It is the installation shooting platform three-dimensional structure schematic diagram of the utility model.
[0022] In the drawing: 1, screw rod; 2, bearing; 3, locking nut; 4, buffer pad; 5, shell; 6, screw nut; 7, support; 8, sealing flange; 9, shaft coupling; 10, connecting shaft; 11, oil filling hole; 12, oil box; 13, electromagnetic valve; 14, hose; 15, fixing ring; 16, oil injection pipe; 17, installation shooting platform; 18, guide hole; 19, guide column; 20, socket; 21, bottom plate; 22, through slot; 23, fixing screw; 24, clamping tooth; 25, clamping block; 26, lap joint strip. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0024] Please refer to Figures 1-4 The utility model provides an embodiment: a kind of electric shooting platform screw rod and bearing buffer device, including shell 5 and installation shooting platform 17, shell 5 bottom end fixedly connected with installation shooting platform 17, shell 5 inside fixedly connected with bearing 2, bearing 2 inside movably connected with screw rod 1, screw rod 1 outside sleeve joint has screw rod nut 6, screw rod 1 is installed with buffer pad 4 at its shaft shoulder, bearing 2 and buffer pad 4 contact, screw rod 1, bearing 2 and buffer pad 4 are fixedly connected in shell 5 by lock nut 3, shell 5 is fixed with shaft coupling 9 on the top outer ring of screw rod 1, bearing 2 and shell 5 are fixedly connected with sealing flange 8, screw rod 1 top is integrally processed with connecting shaft 10;
[0025] Specifically, as shown in Figure 1 , Figure 2 Screw rod 1 shaft shoulder is equipped with buffer pad 4, the inner ring of bearing 2 contacts this buffer pad 4, and another end of bearing 2 is also equipped with a buffer pad 4, screw rod 1, bearing 2 and buffer pad 4 are connected together by lock nut 3 with certain pre-tightening force when installation, when screw rod 1 rotates, screw rod 1 moves axially due to the action of screw rod nut 6, and generates thrust force, at this time, counterforce acts on bearing 2 through buffer pad 4, due to the existence of buffer pad 4, direct contact between screw rod 1 and bearing 2 is avoided when axial force is borne.
[0026] Shell 5 left side fixedly connected with two groups of supports 7, lap strip 26 is welded between support 7, oil box 12 is clamped in the top of lap strip 26, oil hole 11 is arranged in the top end of oil box 12, electromagnetic valve 13 is installed in one end of oil box 12, soft tube 14 is connected to the output end of electromagnetic valve 13, oil injection pipe 16 is connected to the bottom end of soft tube 14, screw rod nut 6 is machined on the outer wall of shell 5, oil injection pipe 16 is bent at screw rod nut 6 and extends to the inside of shell 5, support 7 is two groups of right-angled triangle frame bodies, two groups of supports 7 are parallel to each other and perpendicular to lap strip 26, clamping block 25 is fixedly connected to the top end of oil injection pipe 16, fixed ring 15 is welded on the outer wall of support 7, clamping tooth 24 that is embedded matching with clamping block 25 is machined on the inner wall of fixed ring 15, clamping block 25 and fixed ring 15 are embedded and clamped, the rotatable angle of clamping block 25 in clamping tooth 24 is 0-360 °;
[0027] Specifically, as shown in Figure 2 , Figure 3 And Figure 4As shown, the shell 5 outside is fixed by the bracket 7 lap strip 26, lap strip 26 is equipped with oil box 12, staff from the oil hole 11 at the top of the oil box 12 inject lubricating oil, lubricating oil through the hose 14 into the oil pipe 16, oil pipe 16 through the fixed ring 15 tooth 24 and clamping block 25 can be positioned oiling angle and position, and with the rotation of the screw 1 evenly distributed to its outer surface, in the process of equipment operation, solenoid valve 13 according to the electromagnetic signal control lubricating oil release, realize real-time oil supply.
[0028] The mounting shooting platform 17 is movably sleeved with guide columns 19 through the guide holes 18, the guide columns 19 are arranged in four groups and surround the lead screw 1, the bottom end of the guide column 19 is fixedly connected with the socket 20, the bottom end of the socket 20 is welded with the bottom plate 21, the socket 20 and the guide column 19 are fixedly connected with the fixing screw 23, and the bottom plate 21 is provided with a through slot 22.
[0029] Specifically, as shown in Figure 1 、 Figure 2 and Figure 4 , the shell 5 moves under the driving of the lead screw nut 6, the guide columns 19 at the four corners of the mounting shooting platform 17 are movably sleeved in the guide holes 18 of the shell 5, forming a guide auxiliary structure, when the equipment is running, the guide columns 19 limit the deviation of the mounting shooting platform 17 during movement, so that the movement path of the electric shooting platform always remains stable and straight.
[0030] Working principle: the shaft shoulder of the lead screw 1 is provided with a buffer pad 4, the inner ring of the bearing 2 is in contact with the buffer pad 4, and another end of the bearing 2 is also provided with a buffer pad 4, the lead screw 1, the bearing 2 and the buffer pad 4 are connected together through the locking nut 3 which has a certain pre-tightening force during installation, when the lead screw 1 rotates, the lead screw 1 moves axially and generates a thrust force due to the action of the lead screw nut 6, at this time, the reaction force acts on the bearing 2 through the buffer pad 4, due to the existence of the buffer pad 4, the direct contact between the lead screw 1 and the bearing 2 is avoided when subjected to an axial force, important parts are effectively protected, and due to the fact that the material of the buffer pad 4 is relatively soft compared with the lead screw 1 and the bearing 2, the rigid impact between the lead screw 1 and the bearing 2 is effectively reduced.
[0031] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but rather can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being indicated by the appended claims rather than by the above description, and all changes coming within the meaning and equivalency range of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.
Claims
1. An electric firing platform lead screw and bearing buffer device, comprising a housing (5) and a mounting platform (17), characterized in that: The bottom of the housing (5) is fixedly connected to a mounting platform (17). A bearing (2) is fixedly connected inside the housing (5). A lead screw (1) is movably connected inside the bearing (2). A lead screw nut (6) is sleeved on the outside of the lead screw (1). A buffer pad (4) is installed on the shoulder of the lead screw (1). The bearing (2) is in contact with the buffer pad (4). The lead screw (1), bearing (2) and buffer pad (4) are fixedly connected inside the housing (5) by a locking nut (3). A coupling (9) is fixed on the outer ring of the top of the lead screw (1) in the housing (5). A sealing flange (8) is fixedly connected between the bearing (2) and the housing (5). A connecting shaft (10) is integrally machined on the top of the lead screw (1).
2. The electric shooting platform lead screw and bearing buffer device according to claim 1, characterized in that: Two sets of brackets (7) are fixedly connected to the left side of the housing (5). An overlap strip (26) is welded between the brackets (7). An oil box (12) is snapped onto the top of the overlap strip (26). An oil filling hole (11) is provided at the top of the oil box (12). A solenoid valve (13) is installed at one end of the oil box (12). A hose (14) is connected to the output end of the solenoid valve (13). An oil injection pipe (16) is connected to the bottom end of the hose (14). A screw nut (6) is machined on the outer wall of the housing (5). The oil injection pipe (16) is bent at the screw nut (6) and extends into the interior of the housing (5).
3. The electric shooting platform lead screw and bearing buffer device according to claim 2, characterized in that: The bracket (7) consists of two sets of right-angled triangular frames, with the two sets of brackets (7) being parallel to each other and perpendicular to the overlapping strip (26).
4. The electric shooting platform lead screw and bearing buffer device according to claim 2, characterized in that: The top end of the oil injection pipe (16) is fixedly connected to a locking block (25), and a fixing ring (15) is welded to the outer wall of the bracket (7). The inner wall of the fixing ring (15) is machined with locking teeth (24) that fit and match the locking block (25).
5. The electric shooting platform lead screw and bearing buffer device according to claim 4, characterized in that: The locking block (25) and the fixing ring (15) are engaged and locked together. The rotatable angle of the locking block (25) within the locking teeth (24) is 0-360°.
6. The electric shooting platform lead screw and bearing buffer device according to claim 1, characterized in that: The mounting platform (17) has guide holes (18) at its four corners. The mounting platform (17) is movably connected to guide posts (19) through the guide holes (18). There are four sets of guide posts (19) arranged around the lead screw (1).
7. The electric shooting platform lead screw and bearing buffer device according to claim 6, characterized in that: The bottom end of the guide post (19) is fixedly connected to a socket (20), and the bottom end of the socket (20) is welded with a base plate (21).
8. The electric shooting platform lead screw and bearing buffer device according to claim 7, characterized in that: A fixing screw (23) is fixedly connected between the socket (20) and the guide post (19), and a through groove (22) is provided in the base plate (21).