A bridge type gantry machining center clamp
By designing a movable fixture structure and wear-resistant components, the problems of inconvenient position adjustment and wear of fixtures used in bridge gantry machining centers have been solved, achieving convenient installation and stable fixation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINUODE INTELLIGENT TECH (KUNSHAN) CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-09
Smart Images

Figure CN224333969U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of bridge gantry clamps, and particularly relates to a clamp for a bridge gantry machining center. Background Technology
[0002] A gantry machining center is a machining center in which the spindle axis is set perpendicular to the worktable. The overall structure is a large machining center with a portal frame consisting of double columns and a top beam. There is also a crossbeam in the middle of the double columns. When using this gantry machining center, it is necessary to fix the workpiece. At this time, a bridge-type gantry machining center fixture is required.
[0003] The fixtures currently available for bridge-type gantry machining centers have the following problems in actual use:
[0004] 1. In actual use, the traditional bridge-type gantry machining center fixture needs to be installed on the lathe. After the fixture is installed, its position will not be movable. If there is a slight deviation in the installation position, the fixture needs to be removed and reinstalled, which is inconvenient to use.
[0005] 2. Most bridge-type gantry machining centers use clamping fixtures, which are used to fix workpieces. After long-term use, the contact points between the fixture and the workpiece may wear out, and the fixture does not have a wear-resistant effect. Utility Model Content
[0006] The purpose of this utility model is to provide a fixture for a bridge-type gantry machining center to solve the technical problems mentioned in the background art.
[0007] To achieve the above objectives, the specific technical solution of this utility model is as follows: A fixture for a bridge-type gantry machining center includes a base plate, a side plate welded to the top of the base plate, an internally threaded sleeve welded to the side of the side plate, a lead screw sleeved inside the internally threaded sleeve, a bearing sleeved on the surface of the lead screw, a clamping plate mounted on the surface of the bearing, a fixing plate welded to the top of the base plate, a base sleeved inside the base plate, a sliding groove formed on the side of the base, a slider welded to the inner wall of the base plate, the slider located inside the sliding groove, an insertion hole formed on the side of the base, a spring welded to the side of the base plate, a fixing piece welded to the other end of the spring, an insertion rod welded to the surface of the fixing piece, and the insertion rod embedded inside the insertion hole.
[0008] Preferably, the side of the fixing plate is provided with an anti-wear component, which includes a slot, a magnetic strip, an iron strip and a pad. The slot is opened on the side of the fixing plate, the magnetic strip is bonded inside the slot, the iron strip is provided inside the slot, the surface of the iron strip is attached to the surface of the magnetic strip, and the pad is bonded to the surface of the iron strip. The side of the clamping plate is provided with an anti-wear component.
[0009] Preferably, a fixing seat is welded to the side of the clamping plate, a limiting rod is welded to the other end of the fixing seat, the limiting rod penetrates through the side plate, and a sleeve is welded to the side of the side plate, with the limiting rod penetrating through the sleeve.
[0010] Preferably, the spring is symmetrical, the bottom of the base has a groove, an adhesive sheet is bonded inside the groove, and an anti-slip pad is bonded to the bottom of the adhesive sheet.
[0011] Preferably, a turntable is welded to one end of the lead screw, and the sliders are symmetrically distributed.
[0012] Preferably, a baffle is welded to the other end of the limiting rod, the limiting rods are symmetrically distributed, a paddle is provided on the outside of the baffle, and a fixing piece is welded to the surface of the paddle.
[0013] The fixture for a bridge-type gantry machining center according to this utility model has the following advantages:
[0014] 1. This type of fixture for a bridge-type gantry machining center is achieved by welding a side plate to the top of a base plate, welding an internal threaded sleeve to the side of the side plate, connecting a lead screw inside the internal threaded sleeve, connecting a bearing to the surface of the lead screw, installing a clamping plate on the bearing surface, welding a fixing plate to the top of the base plate, connecting a base to the inside of the base plate, and opening a sliding groove on the side of the base plate. A slider is welded to the inner wall of the base plate, with the slider located inside the sliding groove. An insertion hole is opened on the side of the base plate, and a spring is welded to the side of the base plate. A fixing plate is welded to the other end of the spring, and an insertion rod is welded to the surface of the fixing plate. The insertion rod is then inserted into the insertion hole. When a small positional deviation occurs after the fixture is installed, the spring can be pulled until the insertion rod disengages from the insertion hole. Then, the base plate is moved using the sliding groove until it is in the appropriate position. Afterward, the spring's rebound effect is used to insert the insertion rod into the insertion hole, thereby fixing the base plate. This allows for adjustment of the fixture, making it very convenient to use.
[0015] 2. This type of fixture for a bridge-type gantry machining center features an anti-wear component on the side of the fixed plate. The anti-wear component includes a slot, a magnetic strip, an iron strip, and a pad. A slot is formed on the side of the fixed plate, and a magnetic strip is bonded inside the slot. An iron strip is also placed inside the slot, with its surface in contact with the surface of the magnetic strip. A pad is bonded to the surface of the iron strip. The anti-wear component is also provided on the side of the clamping plate. When using this fixture, the pad provides anti-wear protection for the fixed plate and clamping plate. When the pad wears out, it can be directly replaced. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the spring structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the anti-slip mat structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the pad structure of this utility model.
[0021] The markings in the diagram are as follows: 1. Base plate; 2. Base; 3. Side plate; 4. Fixing plate; 5. Clamping plate; 6. Bearing; 7. Internal threaded sleeve; 8. Lead screw; 9. Spring; 10. Fixing plate; 11. Insert rod; 12. Pulley; 13. Slider; 14. Slide groove; 15. Insertion hole; 16. Pad; 17. Iron strip; 18. Magnet strip; 19. Slot; 20. Fixing seat; 21. Sleeve; 22. Limiting rod; 23. Baffle; 24. Anti-slip pad; 25. Adhesive piece; 26. Groove; 27. Turntable. Detailed Implementation
[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0026] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0027] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed description of a fixture for a bridge-type gantry machining center.
[0028] like Figure 1-4As shown, this utility model discloses a fixture for a bridge-type gantry machining center, comprising a base plate 1, a side plate 3 welded to the top of the base plate 1, an internal threaded sleeve 7 welded to the side of the side plate 3, a lead screw 8 sleeved inside the internal threaded sleeve 7, a bearing 6 sleeved on the surface of the lead screw 8, a clamping plate 5 mounted on the surface of the bearing 6, a fixing plate 4 welded to the top of the base plate 1, a base 2 sleeved inside the base plate 1, and a sliding groove 14 formed on the side of the base 2. By installing the sliding groove 14 and a slider 13, the base plate 1 can be moved using the slider 13 and the sliding groove 14, providing a basis for subsequent position adjustment, which is very convenient to use. The slider 13 is welded to the inner wall of the base plate 1, and the slider 13 is located inside the sliding groove 14. A socket 15 is provided on the side of the base 2, and a spring 9 is welded to the side of the base plate 1. A fixing plate 10 is welded to the other end of the spring 9, and a plug rod 11 is welded to the surface of the fixing plate 10. The plug rod 11 is embedded in the socket 15. By installing the spring 9, the plug rod 11, and the socket 15, when a small positional deviation occurs after the fixture is installed, the spring 9 can be pulled until the plug rod 11 disengages from the socket 15. Then, the base plate 1 is moved using the slide groove 14 until it is moved to the appropriate position. Afterward, the spring 9 is used to re-enter the plug rod 11 into the socket 15, thereby fixing the base plate 1. At this time, the fixture can be adjusted, which is very convenient to use.
[0029] The side of the fixing plate 4 is equipped with an anti-wear component, which includes a slot 19, a magnetic strip 18, an iron strip 17, and a pad 16. The slot 19 is located on the side of the fixing plate 4, with the magnetic strip 18 bonded inside. The iron strip 17 is also located inside the slot 19, with its surface attached to the surface of the magnetic strip 18. The pad 16 is bonded to the surface of the iron strip 17. The side of the clamping plate 5 is also equipped with an anti-wear component. By installing this component, the pad 16 provides anti-wear protection for the fixing plate 4 and clamping plate 5 when the clamp is used. When the pad 16 becomes worn, it can be directly replaced.
[0030] A fixing seat 20 is welded to the side of the clamping plate 5, and a limiting rod 22 is welded to the other end of the fixing seat 20. The limiting rod 22 passes through the side plate 3, and a sleeve 21 is welded to the side of the side plate 3. The limiting rod 22 passes through the sleeve 21. By installing the limiting rod 22, the clamping plate 5 can be limited, so that the clamping plate 5 will not rotate around the bearing 6, thereby ensuring the stability of the clamping plate 5 and making it more stable during use.
[0031] The spring 9 is symmetrical. The bottom of the base 2 has a groove 26. The groove 26 is glued to the inside of the adhesive piece 25. The bottom of the adhesive piece 25 is glued to the anti-slip pad 24. By installing the anti-slip pad 24, the friction between the base 2 and the installation position can be increased, thereby ensuring the stability of the fixture after installation and making it more stable during use.
[0032] A turntable 27 is welded to one end of the lead screw 8, and the sliders 13 are symmetrically distributed. By installing the turntable 27, when it is necessary to rotate the lead screw 8, the turntable 27 can be used as the force point, and the lead screw 8 can be directly driven to rotate through the turntable 27, which is very convenient to use.
[0033] The other end of the limiting rod 22 is welded with a baffle 23. The limiting rod 22 is symmetrically distributed. The baffle 23 is provided with a lever 12. A fixing piece 10 is welded to the surface of the lever 12. By installing the lever 12, when it is necessary to pull the spring 9, the lever 12 can be used as the force point. The spring 9 can be pulled directly through the lever 12, which is very convenient to use.
[0034] The working principle of the fixture used in this bridge-type gantry machining center is as follows: First, the fixture should be installed in a suitable position. At this point, a side plate 3 is welded to the top of the base plate 1, and an internal threaded sleeve 7 is welded to the side of the side plate 3. Simultaneously, a lead screw 8 is fitted inside the internal threaded sleeve 7, and a bearing 6 is fitted onto the surface of the lead screw 8. A clamping plate 5 is installed on the surface of the bearing 6. A fixing plate 4 is welded to the top of the base plate 1, and a base 2 is fitted inside the base plate 1. A sliding groove 14 is opened on the side of the base 2. A slider 13 is welded to the inner wall of the base plate 1, and the slider 13 is located inside the sliding groove 14. An insertion hole 15 is opened on the side of the base 2, and a spring 9 is welded to the side of the base plate 1. Simultaneously, a fixing piece 10 is welded to the other end of the spring 9, and an insertion rod 11 is welded to the surface of the fixing piece 10. The insertion rod 11 is then embedded inside the insertion hole 15. When a small positional deviation occurs after the fixture is installed, the spring 9 can be pulled until the insertion rod 11 disengages from the insertion hole 15. Then, the sliding groove 14 is used to move the base plate 1. Once the clamp is moved to the appropriate position, the spring 9 is used to insert the rod 11 into the hole 15, thus fixing the base plate 1. This allows for adjustment of the clamp, making it very convenient to use. Then, the pad 16 is inserted into the slot 19 until the magnet strip 18 and the iron strip 17 are in contact with each other. The magnetic attraction effect provides a fixing effect for the pad 16. At this time, there is an anti-wear component on the side of the fixing plate 4, which includes the slot 19, magnet strip 18, iron strip 17 and pad 16. The slot 19 is opened on the side of the fixing plate 4, and the magnet strip 18 is glued inside the slot 19. The iron strip 17 is also located inside the slot 19, with the surface of the iron strip 17 adhering to the surface of the magnet strip 18. The pad 16 is glued to the surface of the iron strip 17. There is also an anti-wear component on the side of the clamping plate 5. When using the clamp, the pad 16 can be used to provide anti-wear effect for the fixing plate 4 and the clamping plate 5. When the pad 16 is worn, it can be replaced directly.
[0035] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A fixture for a bridge-type gantry machining center, comprising a base plate (1), characterized in that: The bottom plate (1) is welded to the top of the side plate (3), the side plate (3) is welded to the side of the internal thread sleeve (7), the internal thread sleeve (7) is fitted with a screw rod (8), the screw rod (8) is fitted with a bearing (6), the bearing (6) is fitted with a clamping plate (5), the bottom plate (1) is welded to the top of the bottom plate (1), the bottom plate (1) is fitted with a base (2), the base (2) has a groove (14) on its side, the bottom plate (1) is welded to the inner wall of the bottom plate (1) and the slider (13) is located inside the groove (14), the base (2) has a hole (15) on its side, the bottom plate (1) is welded to the side of the bottom plate (1) and a spring (9) is welded to the other end of the spring (9) and a fixing piece (10) is welded to the surface of the fixing piece (10) and a plug (11) is welded to the surface of the fixing piece (10) and the plug (11) is embedded in the hole (15).
2. The fixture for a bridge-type gantry machining center according to claim 1, characterized in that: The side of the fixing plate (4) is provided with an anti-wear component, which includes a slot (19), a magnetic strip (18), an iron strip (17) and a pad (16). The side of the fixing plate (4) has a slot (19), the magnetic strip (18) is bonded inside the slot (19), the iron strip (17) is provided inside the slot (19), the surface of the iron strip (17) is attached to the surface of the magnetic strip (18), and the pad (16) is bonded to the surface of the iron strip (17). The side of the clamping plate (5) is provided with an anti-wear component.
3. The fixture for a bridge-type gantry machining center according to claim 1, characterized in that: A fixing seat (20) is welded to the side of the clamping plate (5), and a limiting rod (22) is welded to the other end of the fixing seat (20). The limiting rod (22) passes through the side plate (3), and a sleeve (21) is welded to the side of the side plate (3). The limiting rod (22) passes through the sleeve (21).
4. The fixture for a bridge-type gantry machining center according to claim 1, characterized in that: The spring (9) is symmetrical, and the bottom of the base (2) has a groove (26) with an adhesive piece (25) bonded inside the groove (26) and an anti-slip pad (24) bonded to the bottom of the adhesive piece (25).
5. The fixture for a bridge-type gantry machining center according to claim 1, characterized in that: The lead screw (8) is welded to a turntable (27) at one end, and the sliders (13) are symmetrically distributed.
6. The fixture for a bridge-type gantry machining center according to claim 3, characterized in that: The other end of the limiting rod (22) is welded with a baffle (23). The limiting rod (22) is symmetrically distributed. The baffle (23) is provided with a paddle (12) on the outside. The paddle (12) is welded with a fixing piece (10).