Positioning machining clamp for machining annular surface of saddle belt of bearing saddle

Abstract

The invention belongs to the technical field of adapter machining devices, and discloses a positioning machining clamp for machining an adapter belt ring surface, which comprises a base, and a placing seat for placing the surface of one side, far away from the adapter belt ring surface, of a to-be-machined adapter is fixed at the top of the base; the two sides of the base are provided with pressing mechanisms used for pressing and fixing the two planes of the side, away from the containing base, of the adapter, the top of the base is fixedly provided with a mounting frame, and the mounting frame is provided with a grinding mechanism used for grinding the saddle belt ring face of the pressed adapter. After the surface of one side, far away from the saddle belt ring surface, of the adapter is placed at the top of the placing seat, the two planes of one side, far away from the placing seat, of the adapter can be tightly pressed by using the pressing mechanism, at the moment, the saddle belt ring surface of the adapter is located on the upper side and exposed, and the operation space is large; and a worker can conveniently use the polishing mechanism to polish and machine the annular surface of the saddle belt of the adapter.

Description

Technical Field

[0001] The present invention relates to the technical field of load-bearing saddle processing devices, and particularly relates to a positioning processing fixture for processing the saddle belt toroidal surface of a load-bearing saddle. Background Art

[0002] The arc surface on the load-bearing saddle is called the toroidal surface or saddle belt toroidal surface. The toroidal surface of the load-bearing saddle is in contact connection with the bearing, and its assembly dimensions are relatively critical, directly affecting the assembly quality and service performance among the load-bearing saddle, axle, and bearing. The load-bearing saddle is usually cast. The toroidal surface of the roughly formed load-bearing saddle is relatively rough and usually requires a grinding machine to grind the rough parts. During the grinding process, it is first necessary to clamp the load-bearing saddle.

[0003] A positioning processing fixture for processing the saddle belt toroidal surface of a load-bearing saddle is disclosed in the Chinese utility model patent with the publication number CN216633425U, including: a disc base, a square base, a backing plate, a first adjusting bolt, and a second adjusting bolt. The square base is arranged on the disc base. The square base includes a support frame, a first threaded hole, a second threaded hole, and a T-shaped plug plate. The first threaded hole is arranged on the left side of the support frame. The second threaded holes are arranged on the upper and lower sides of the support frame. The T-shaped plug plate is fixedly arranged on the right side inside the support frame, and the T-shaped plug plate is movably arranged on the left side inside the support frame. The first adjusting bolt passes through the first threaded hole and presses against the left T-shaped plug plate to adjust the left and right stroke of the left T-shaped plug plate. The backing plates are respectively arranged on the upper and lower sides inside the support frame. The second adjusting bolt passes through the second threaded hole and presses against the upper and lower backing plates to adjust the up and down stroke of the upper and lower backing plates.

[0004] Regarding the above related technologies, the inventor believes that there are the following defects: after fixing the load-bearing saddle with the above fixture and grinding and processing the saddle belt toroidal surface of the load-bearing saddle, the grinding tool can only be placed between the saddle belt toroidal surfaces of two load-bearing saddles. However, the space between the saddle belt toroidal surfaces of two load-bearing saddles is limited, which poses a certain obstacle to the grinding and processing of the saddle belt toroidal surface. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a positioning processing fixture for processing the saddle belt toroidal surface of a load-bearing saddle.

[0006] The above technical object of the present invention is achieved by the following technical solutions: A positioning processing fixture for processing the saddle belt toroidal surface of a bearing saddle, including a base, a placing seat fixed on the top of the base for placing the surface of the bearing saddle to be processed on the side away from its saddle belt toroidal surface, pressing mechanisms arranged on both sides of the base for pressing and fixing the two planes of the bearing saddle on the side away from the placing seat, a mounting frame fixed on the top of the base, and a grinding mechanism arranged on the mounting frame for grinding the saddle belt toroidal surface of the pressed bearing saddle.

[0007] By adopting the above technical solutions, after placing the surface of the bearing saddle on the side away from its saddle belt toroidal surface on the top of the placing seat, the pressing mechanisms can be used to press the two planes of the bearing saddle on the side away from the placing seat. At this time, the saddle belt toroidal surface of the bearing saddle is located on the upper side and is exposed, with a relatively large operating space, so that the staff can use the grinding mechanism to grind the saddle belt toroidal surface of the bearing saddle.

[0008] Further, the pressing mechanism includes pressing components. There are two groups of pressing components, which are symmetrically arranged on both sides of the placing seat. Each group of pressing components includes a threaded rod rotatably installed on the top of the base and arranged vertically, a guide rod fixed on the top of the base and parallel to the threaded rod, a lower block body jointly arranged on the threaded rod and the guide rod, an upper block body jointly arranged on the threaded rod and the guide rod, a lower connecting rod hinged to the side of the lower block body close to the placing seat, an upper connecting rod hinged to the side of the upper block body close to the placing seat and parallel to the lower connecting rod, and an L-shaped pressing plate hinged to the end of the lower connecting rod away from the lower block body; the threaded rod penetrates through the lower block body and is rotatably connected, the threaded rod penetrates through the upper block body and is threadedly connected, the guide rod penetrates through the lower block body and the upper block body and is in sliding fit, the end of the upper connecting rod away from the upper block body is slidably connected to the side of the L-shaped pressing plate close to the threaded rod through a sliding component, the vertical section of the L-shaped pressing plate is parallel to the threaded rod, the bottom of the horizontal section of the L-shaped pressing plate is parallel to the plane of the bearing saddle on the side away from the placing seat, and the pressing mechanism further includes a driving component for driving one of the threaded rods to rotate and a transmission component for driving the other threaded rod to rotate.

[0009] By adopting the above technical solution, a parallelogram structure is formed among the upper connecting rod, the lower connecting rod, the vertical section of the L-shaped pressing plate and the threaded rod. When the driving assembly drives one of the threaded rods to rotate, the other threaded rod rotates synchronously under the action of the transmission assembly, so that the two threaded rods rotate synchronously. Since the threaded rod is threadedly connected to the upper block and rotatably connected to the lower block, and the guide rod passes through the lower block and the upper block and is in sliding fit, the upper block can be lifted or lowered. Also, since one end of the upper connecting rod away from the upper block is slidably connected to one side of the L-shaped pressing plate close to the threaded rod through a sliding assembly, the upper connecting rod swings. Due to the parallelogram principle, the L-shaped pressing plate swings downward until the bottom of the horizontal section of the L-shaped pressing plate presses tightly against the two planes on the side of the bearing saddle away from the placing seat. In addition, by increasing the surface area of the horizontal section of the L-shaped pressing plate, it can be ensured that this fixture can press and fix bearing saddles with different length dimensions, expanding the applicable range of this fixture.

[0010] Furthermore, the driving assembly includes a driving motor fixed to the top of the base, a lower driving gear fixed to the output end of the driving motor, and a lower driven gear fixedly sleeved on the threaded rod and meshing with the lower driving gear. A controller and a lower storage battery electrically connected to the driving motor are fixed to the top of the base.

[0011] By adopting the above technical solution, after the driving motor works, it drives the threaded rod to rotate, so that the lower driving gear, the lower driven gear meshing with the lower driving gear, and the threaded rod fixed to the lower driven gear all rotate, so that the staff can control the movement of the L-shaped pressing plate and complete the pressing and fixing of the bearing saddle.

[0012] Furthermore, the transmission assembly includes a rotating rod rotatably installed on the top of the base, an intermediate synchronous pulley fixedly sleeved on the rotating rod, a side synchronous pulley fixedly sleeved on the threaded rod, and a transmission synchronous belt for connecting the side synchronous pulley and the intermediate synchronous pulley. The distance between the rotating rod and the two threaded rods is equal. There are two intermediate synchronous pulleys and they are arranged in a staggered manner. There are two side synchronous pulleys and two transmission synchronous belts. The positions of the two side synchronous pulleys correspond to the positions of the two intermediate synchronous pulleys respectively.

[0013] By adopting the above technical solution, after the driving motor works and drives the threaded rod to rotate, the side synchronous pulley fixed to the threaded rod rotates. Under the transmission action of the two transmission synchronous belts and the two intermediate synchronous pulleys, the threaded rods on both sides rotate synchronously, so that the L-shaped pressing plates on both sides swing synchronously and complete the pressing and fixing of the bearing saddle.

[0014] Further, the sliding assembly includes an L-shaped slide rail fixed to the side wall of the vertical section of the L-shaped pressing plate close to the threaded rod, and a movable plate hinged to the end of the upper connecting rod away from the upper block. There are two L-shaped slide rails, and the movable plate is slidably engaged with the space formed between the vertical section of the L-shaped pressing plate and the two L-shaped slide rails.

[0015] By adopting the above technical solution, after the driving motor works and the upper block moves up and down, the upper block drives the movable plate to move up and down along the two L-shaped slide rails through the upper connecting rod. Then, under the action of the parallelogram, the L-shaped pressing plate is controlled to move up and down until the horizontal section of the L-shaped pressing plate presses against the bearing saddle.

[0016] Further, a rubber plate is fixed to the top of the placement seat, and a rubber sheet is fixed to the bottom of the horizontal section of the L-shaped pressing plate.

[0017] By adopting the above technical solution, both the rubber plate and the rubber sheet are made of rubber material, and both have a large friction coefficient, which increases the friction force between the top of the placement seat and the bottom of the bearing saddle and between the horizontal section of the L-shaped pressing plate and the bearing saddle, and is beneficial to improving the processing effect on the toroidal surface of the bearing saddle saddle belt.

[0018] Further, the grinding mechanism includes an installation assembly and a grinding assembly. The installation assembly includes a mounting plate fixed to the mounting frame. There are two mounting plates, which are respectively located on the rack bars on both sides of the mounting frame. The installation assembly also includes an annular plate body jointly arranged on the two mounting plates, and a circular ring body fixed to the side wall of one side of the annular plate body and coaxially arranged with the annular plate body. Arc-shaped grooves slidably engaged with the circular ring body are respectively arranged through the two mounting plates, and the arc-shaped grooves are coaxially arranged with the circular ring body. The grinding assembly is arranged on the annular plate body, and a rotating assembly for driving the annular plate body to rotate is arranged on the mounting plate.

[0019] Further, the grinding assembly includes a C-shaped plate body fixed to the side of the annular plate body away from the mounting plate, an electric push rod fixed to the C-shaped plate body, a connecting plate fixed to the end of the push rod of the electric push rod, a grinding motor fixed to the bottom of the connecting plate, and a grinding head detachably connected to the output end of the grinding motor. The rotating assembly includes a fixing plate fixed to the mounting plate, a rotating motor fixed to the fixing plate, an upper driving gear fixed to the output end of the rotating motor, and a toothed ring fixed to the inner wall of the annular plate body and meshing with the upper driving gear.

[0020] By adopting the above technical solution, after the rotating motor works, it drives the upper driving gear to rotate, so that the toothed ring meshing with the upper driving gear, the circular ring body fixed to the toothed ring, and the annular plate body fixed to the circular ring body all rotate. The C-shaped plate body, the electric push rod, the connecting plate, the grinding motor, and the grinding head also rotate synchronously, so as to facilitate the grinding motor to drive the grinding head to rotate after working and complete the grinding operation on different positions of the toroidal surface of the bearing saddle saddle belt.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. In the present application, after placing the surface of the saddle carrier on the side away from its saddle belt toroidal surface on the top of the placement seat, the pressing mechanism can be used to press the two planes on the side of the saddle carrier away from the placement seat. At this time, the saddle belt toroidal surface of the saddle carrier is located on the upper side and is exposed, providing a relatively large operating space for the staff to use the grinding mechanism to grind the saddle belt toroidal surface of the saddle carrier;

[0023] 2. In the present application, when the driving motor operates and the upper block moves up and down, the upper block drives the movable plate to move up and down along the two L-shaped slide rails through the upper connecting rod. Then, under the action of the parallelogram, the L-shaped pressing plate is controlled to move up and down until the horizontal section of the L-shaped pressing plate presses the saddle carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 is Figure 1 a schematic diagram of the structure from another perspective;

[0026] Figure 3 is a schematic diagram of the structure of an embodiment of the present invention for highlighting the arc-shaped groove;

[0027] Figure 4 is Figure 1 an enlarged schematic diagram of part A in;

[0028] Figure 5 is a plan view of an embodiment of the present invention for highlighting the upper connecting rod and its connection structure.

[0029] In the figure: 1. Base; 11. Controller; 12. Lower storage battery; 2. Carrying saddle; 3. Placing seat; 31. Rubber plate; 4. Pressing mechanism; 41. Pressing assembly; 411. Threaded rod; 412. Guide rod; 413. Lower block; 414. Upper block; 415. Lower connecting rod; 416. Upper connecting rod; 417. L-shaped pressing plate; 4171. Rubber sheet; 42. Driving assembly; 421. Driving motor; 422. Lower driving gear; 423. Lower driven gear; 43. Transmission assembly; 431. Rotating rod; 432. Intermediate synchronous pulley; 433. Side synchronous pulley; 434. Transmission synchronous belt; 5. Mounting bracket; 6. Grinding mechanism; 61. Mounting assembly; 611. Mounting plate; 6111. Arc-shaped groove; 612. Ring-shaped plate body; 613. Ring body; 62. Grinding assembly; 621. C-shaped plate body; 6211. Upper storage battery; 622. Electric push rod; 623. Connecting plate; 624. Grinding motor; 625. Grinding head; 7. Sliding assembly; 71. L-shaped slide rail; 72. Movable plate; 8. Rotating assembly; 81. Fixed plate; 82. Rotating motor; 83. Upper driving gear; 84. Tooth ring. Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] As Figures 1-5 shown, an embodiment of the present application discloses a positioning processing fixture for processing the saddle belt toroidal surface of the carrying saddle 2, including a base 1. A placing seat 3 for placing the surface of the carrying saddle 2 to be processed on the side far from its saddle belt toroidal surface is fixed on the top of the base 1. Pressing mechanisms 4 for pressing and fixing the two planes on the side of the carrying saddle 2 far from the placing seat 3 are arranged on both sides of the base 1. A mounting bracket 5 is fixed on the top of the base 1, and a grinding mechanism 6 for grinding the saddle belt toroidal surface of the pressed carrying saddle 2 is arranged on the mounting bracket 5.

[0032] After placing the surface of the carrying saddle 2 on the side far from its saddle belt toroidal surface on the top of the placing seat 3, the pressing mechanism 4 can be used to press the two planes on the side of the carrying saddle 2 far from the placing seat 3. At this time, the saddle belt toroidal surface of the carrying saddle 2 is located on the upper side and is exposed, and the operating space is large, so that the staff can use the grinding mechanism 6 to grind the saddle belt toroidal surface of the carrying saddle 2.

[0033] The pressing mechanism 4 includes a pressing assembly 41. There are two groups of pressing assemblies 41, which are symmetrically arranged on both sides of the placing seat 3. Each group of pressing assemblies 41 includes a threaded rod 411 rotatably installed at the top of the base 1 and arranged vertically, a guide rod 412 fixed to the top of the base 1 and parallel to the threaded rod 411, a lower block 413 jointly arranged on the threaded rod 411 and the guide rod 412, an upper block 414 jointly arranged on the threaded rod 411 and the guide rod 412, a lower connecting rod 415 hinged to the side of the lower block 413 close to the placing seat 3, an upper connecting rod 416 hinged to the side of the upper block 414 close to the placing seat 3 and parallel to the lower connecting rod 415, and an L-shaped pressing plate 417 hinged to the end of the lower connecting rod 415 far from the lower block 413; the threaded rod 411 passes through the lower block 413 and is rotatably connected, the threaded rod 411 passes through the upper block 414 and is threadedly connected, the guide rod 412 passes through the lower block 413 and the upper block 414 and is in sliding fit, the end of the upper connecting rod 416 far from the upper block 414 is slidably connected to the side of the L-shaped pressing plate 417 close to the threaded rod 411 through a sliding assembly 7, the vertical section of the L-shaped pressing plate 417 is parallel to the threaded rod 411, the bottom of the horizontal section of the L-shaped pressing plate 417 is parallel to the plane on the side of the bearing saddle 2 far from the placing seat 3, and the pressing mechanism 4 further includes a driving assembly 42 for driving one of the threaded rods 411 to rotate and a transmission assembly 43 for driving the other threaded rod 411 to rotate.

[0034] A parallelogram structure is formed among the upper connecting rod 416, the lower connecting rod 415, and the vertical section of the L-shaped pressing plate 417 and the threaded rod 411. When the driving assembly 42 drives one of the threaded rods 411 to rotate, the other threaded rod 411 rotates synchronously under the action of the transmission assembly 43, so that the two threaded rods 411 rotate synchronously. Since the threaded rod 411 is threadedly connected to the upper block 414 and rotatably connected to the lower block 413, and the guide rod 412 passes through the lower block 413 and the upper block 414 and is in sliding fit, the upper block 414 can be lifted and lowered. Also, since the end of the upper connecting rod 416 far from the upper block 414 is slidably connected to the side of the L-shaped pressing plate 417 close to the threaded rod 411 through a sliding assembly 7, the upper connecting rod 416 swings. Due to the parallelogram principle, the L-shaped pressing plate 417 swings and descends until the bottom of the horizontal section of the L-shaped pressing plate 417 presses the two planes on the side of the bearing saddle 2 far from the placing seat 3. In addition, by increasing the surface area of the horizontal section of the L-shaped pressing plate 417, it can also be ensured that this fixture can press and fix the bearing saddle 2 with different length dimensions, expanding the application range of this fixture.

[0035] The driving assembly 42 includes a driving motor 421 fixed to the top of the base 1, a lower driving gear 422 fixed to the output end of the driving motor 421, and a lower driven gear 423 fixedly sleeved on the threaded rod 411 and meshing with the lower driving gear 422. A controller 11 and a lower storage battery 12 electrically connected to the driving motor 421 are fixed to the top of the base 1. After the driving motor 421 operates, it drives the threaded rod 411 to rotate, thereby causing the lower driving gear 422, the lower driven gear 423 meshing with the lower driving gear 422, and the threaded rod 411 fixed to the lower driven gear 423 to all rotate, so that the staff can control the movement of the L-shaped pressing plate 417 and complete the pressing and fixing of the carrying saddle 2.

[0036] The transmission assembly 43 includes a rotating rod 431 rotatably mounted on the top of the base 1, an intermediate synchronous pulley 432 fixedly sleeved on the rotating rod 431, a side synchronous pulley 433 fixedly sleeved on the threaded rod 411, and a transmission synchronous belt 434 for connecting the side synchronous pulley 433 and the intermediate synchronous pulley 432. The distance between the rotating rod 431 and the two threaded rods 411 is equal. There are two intermediate synchronous pulleys 432 and they are arranged in a staggered manner. There are two side synchronous pulleys 433 and two transmission synchronous belts 434. The positions of the two side synchronous pulleys 433 correspond to the positions of the two intermediate synchronous pulleys 432 respectively. Specifically: after the driving motor 421 operates and drives the threaded rod 411 to rotate, the side synchronous pulley 433 fixed to the threaded rod 411 is driven to rotate. Under the transmission action of the two transmission synchronous belts 434 and the two intermediate synchronous pulleys 432, the threaded rods 411 on both sides rotate synchronously, so that the L-shaped pressing plates 417 on both sides swing synchronously and complete the pressing and fixing of the carrying saddle 2.

[0037] The sliding assembly 7 includes an L-shaped sliding rail 71 fixed to the side wall of the vertical section of the L-shaped pressing plate 417 close to the threaded rod 411 and a movable plate 72 hinged to the end of the upper connecting rod 416 away from the upper block 414. There are two L-shaped sliding rails 71, and the movable plate 72 is slidably matched with the space formed between the vertical section of the L-shaped pressing plate 417 and the two L-shaped sliding rails 71. After the driving motor 421 operates and causes the upper block 414 to move up and down, the upper block 414 drives the movable plate 72 to move up and down along the two L-shaped sliding rails 71 through the upper connecting rod 416. Then, under the action of the parallelogram, the L-shaped pressing plate 417 is controlled to move up and down until the horizontal section of the L-shaped pressing plate 417 presses the carrying saddle 2.

[0038] A rubber plate 31 is fixed to the top of the placing seat 3, and a rubber sheet 4171 is fixed to the bottom of the horizontal section of the L-shaped pressing plate 417. Both the rubber plate 31 and the rubber sheet 4171 are made of rubber materials, and both have a large friction coefficient, which increases the friction force between the top of the placing seat 3 and the bottom of the carrying saddle 2 and between the horizontal section of the L-shaped pressing plate 417 and the carrying saddle 2, and is beneficial to improving the processing effect on the saddle belt ring surface of the carrying saddle 2.

[0039] The grinding mechanism 6 includes an installation component 61 and a grinding component 62. The installation component 61 includes a mounting plate 611 fixed to the mounting frame 5. There are two mounting plates 611 which are respectively located on the rack bars on both sides of the mounting frame 5. The installation component 61 further includes an annular plate body 612 jointly arranged on the two mounting plates 611 and a toroidal body 613 fixed to the side wall on one side of the annular plate body 612 and coaxially arranged with the annular plate body 612. Arc-shaped grooves 6111 which are slidably matched with the toroidal body 613 are penetrated through both of the two mounting plates 611. The arc-shaped grooves 6111 are coaxially arranged with the toroidal body 613. The grinding component 62 is arranged on the annular plate body 612, and a rotating component 8 for driving the annular plate body 612 to rotate is arranged on the mounting plate 611.

[0040] The grinding component 62 includes a C-shaped plate body 621 fixed to the side of the annular plate body 612 away from the mounting plate 611, an electric push rod 622 fixed to the C-shaped plate body 621, a connecting plate 623 fixed to the push rod end of the electric push rod 622, a grinding motor 624 fixed to the bottom of the connecting plate 623, and a grinding head 625 detachably connected to the output end of the grinding motor 624. The rotating component 8 includes a fixing plate 81 fixed to the mounting plate 611, a rotating motor 82 fixed to the fixing plate 81, an upper driving gear 83 fixed to the output end of the rotating motor 82, and a gear ring 84 fixed to the inner wall of the annular plate body 612 and meshed with the upper driving gear 83.

[0041] After the rotating motor 82 works, it drives the upper driving gear 83 to rotate, so that the gear ring 84 meshed with the upper driving gear 83, the toroidal body 613 fixed to the gear ring 84, and the annular plate body 612 fixed to the toroidal body 613 all rotate. The C-shaped plate body 621, the electric push rod 622, the connecting plate 623, the grinding motor 624 and the grinding head 625 also rotate synchronously, so as to facilitate the grinding motor 624 to drive the grinding head 625 to rotate after working and complete the grinding operation on different positions of the saddle ring surface of the bearing saddle 2. In this embodiment, in order to avoid the phenomenon of power supply wire winding due to the rotation of the electric push rod 622 with the C-shaped plate body 621 and the annular plate body 612, an upper storage battery 6211 electrically connected to the electric push rod 622 is fixed on the C-shaped plate body 621.

[0042] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A positioning machining fixture for machining the toroidal surface of the saddle belt of a carrying saddle, comprising a base (1), characterized in that: A placing seat (3) for placing the surface of the saddle to be machined (2) on the side far from its saddle belt toroidal surface is fixedly arranged at the top of the base (1). Pressing mechanisms (4) for pressing and fixing the two planes on the side of the saddle (2) far from the placing seat (3) are arranged on both sides of the base (1). An installation frame (5) is fixedly arranged at the top of the base (1), and a grinding mechanism (6) for grinding the saddle belt toroidal surface of the pressed saddle (2) is arranged on the installation frame (5).

2. The positioning and machining fixture for machining the saddle belt toroidal surface of the bearing saddle according to claim 1, characterized in that: The pressing mechanism (4) includes pressing components (41). There are two groups of the pressing components (41) and they are symmetrically arranged on both sides of the placing seat (3). Each group of the pressing components (41) includes a threaded rod (411) rotatably installed at the top of the base (1) and arranged vertically, a guide rod (412) fixed at the top of the base (1) and parallel to the threaded rod (411), a lower block body (413) jointly arranged on the threaded rod (411) and the guide rod (412), an upper block body (414) jointly arranged on the threaded rod (411) and the guide rod (412), a lower connecting rod (415) hinged to the side of the lower block body (413) close to the placing seat (3), an upper connecting rod (416) hinged to the side of the upper block body (414) close to the placing seat (3) and parallel to the lower connecting rod (415), and an L-shaped pressing plate (417) hinged to the end of the lower connecting rod (415) far from the lower block body (413); the threaded rod (411) penetrates through the lower block body (413) and is rotatably connected, the threaded rod (411) penetrates through the upper block body (414) and is threadedly connected, the guide rod (412) penetrates through the lower block body (413) and the upper block body (414) and is in sliding fit, the end of the upper connecting rod (416) far from the upper block body (414) is slidably connected to the side of the L-shaped pressing plate (417) close to the threaded rod (411), the vertical section of the L-shaped pressing plate (417) is parallel to the threaded rod (411), the bottom of the horizontal section of the L-shaped pressing plate (417) is parallel to the plane on the side of the saddle (2) far from the placing seat (3), and the pressing mechanism (4) further includes a driving component (42) for driving one of the threaded rods (411) to rotate and a transmission component (43) for driving the other threaded rod (411) to rotate.

3. The positioning and machining fixture for machining the saddle belt toroidal surface of the bearing saddle according to claim 2, wherein: The driving component (42) includes a driving motor (421) fixed at the top of the base (1), a lower driving gear (422) fixed to the output end of the driving motor (421), and a lower driven gear (423) fixedly sleeved on the threaded rod (411) and meshing with the lower driving gear (422). A controller (11) and a lower storage battery (12) electrically connected to the driving motor (421) are fixed at the top of the base (1).

4. A positioning machining fixture for machining the toroidal surface of the saddle belt of a carrying saddle according to claim 3, characterized in that: The transmission assembly (43) includes a rotating rod (431) rotatably mounted on the top of the base (1), an intermediate synchronous pulley (432) fixedly sleeved on the rotating rod (431), a side synchronous pulley (433) fixedly sleeved on the threaded rod (411), and a transmission synchronous belt (434) for connecting the side synchronous pulley (433) and the intermediate synchronous pulley (432). The distance between the rotating rod (431) and the two threaded rods (411) is equal. There are two intermediate synchronous pulleys (432) arranged in a staggered manner. There are two side synchronous pulleys (433) and two transmission synchronous belts (434). The positions of the two side synchronous pulleys (433) correspond to the positions of the two intermediate synchronous pulleys (432) respectively.

5. A positioning machining fixture for machining the toroidal surface of the saddle belt of a carrying saddle according to claim 2, characterized in that: The sliding assembly (7) includes an L-shaped sliding rail (71) fixed on the side wall of the vertical section of the L-shaped pressing plate (417) close to one side of the threaded rod (411), and a movable plate (72) hinged to the end of the upper connecting rod (416) far from the upper block (414). There are two L-shaped sliding rails (71). The movable plate (72) is slidably matched with the space formed between the vertical section of the L-shaped pressing plate (417) and the two L-shaped sliding rails (71).

6. A positioning machining fixture for machining the toroidal surface of the saddle belt of a carrying saddle according to claim 5, characterized in that: A rubber plate (31) is fixed on the top of the placing seat (3), and a rubber sheet (4171) is fixed on the bottom of the horizontal section of the L-shaped pressing plate (417).

7. A positioning machining fixture for machining the saddle belt toroidal surface of a bearing saddle according to claim 5, characterized in that: The grinding mechanism (6) includes a mounting assembly (61) and a grinding assembly (62). The mounting assembly (61) includes a mounting plate (611) fixed on the mounting frame (5). There are two mounting plates (611) respectively located on the rack bars on both sides of the mounting frame (5). The mounting assembly (61) further includes an annular plate body (612) jointly arranged on the two mounting plates (611), and a circular ring body (613) fixed to the side wall of one side of the annular plate body (612) and coaxially arranged with the annular plate body (612). An arc-shaped groove (6111) slidably matched with the circular ring body (613) is penetrated through the two mounting plates (611). The arc-shaped groove (6111) is coaxially arranged with the circular ring body (613). The grinding assembly (62) is arranged on the annular plate body (612), and a rotating assembly (8) for driving the annular plate body (612) to rotate is arranged on the mounting plate (611).

8. A positioning machining fixture for machining the toroidal surface of a bearing saddle belt ring according to claim 7, characterized in that: The grinding assembly (62) includes a C-shaped plate body (621) fixed to the side of the annular plate body (612) away from the mounting plate (611), an electric push rod (622) fixed to the C-shaped plate body (621), a connecting plate (623) fixed to the push rod end of the electric push rod (622), a grinding motor (624) fixed to the bottom of the connecting plate (623), and a grinding head (625) detachably connected to the output end of the grinding motor (624). The rotating assembly (8) includes a fixing plate (81) fixed to the mounting plate (611), a rotating motor (82) fixed to the fixing plate (81), an upper driving gear (83) fixed to the output end of the rotating motor (82), and a toothed ring (84) fixed to the inner wall of the annular plate body (612) and meshing with the upper driving gear (83).

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