Clamp for machining universal joint

Abstract

The utility model relates to the technical field of universal joint processing, in particular to a clamp for processing a universal joint, which is fixedly mounted on a clamp seat through a support rod, a guide groove is arranged on the clamp seat, a transmission shaft is rotatably mounted in the clamp seat, penetrates through the clamp seat and extends into the guide groove, and a first gear is fixedly mounted on the transmission shaft and is positioned in the clamp seat. The transmission assembly is installed on the transmission shaft, the sliding frame is slidably installed on the clamp base through the transmission assembly, the clamping block is fixedly installed on the sliding frame, the gear ring is rotationally installed in the clamp base through the rotating assembly and meshed with the first gears, and under driving of the rotating assembly, the gear ring is meshed with the three sets of first gears, and the clamping block is fixedly installed on the clamping block. The three sets of first gears and the three sets of transmission shafts are driven to rotate at the same time, under power transmission of the transmission assembly, the clamping blocks on the three sets of sliding frames move towards the universal joint along the guide grooves at the same time and clamp the universal joint, and therefore through synchronous driving of the three sets of clamping blocks, clamping of the universal joint is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of universal joint processing, and in particular relates to a clamp for processing a universal joint. Background Art

[0002] A universal joint is a mechanical component that achieves variable-angle power transmission. It is used in positions where the direction of the transmission axis needs to be changed. It is the "joint" component of the universal transmission device of the automobile drive system.

[0003] The existing patent CN 215825153 U3 is a special clamp for processing the fork end face of a three-pronged universal joint. The adjusting screw and the limit block are driven by rotating the adjusting block. The adjusting screw and the threaded opening are cooperated to push the clamp base and the U-shaped clamp block to slide on the inner wall of the clamp guide shell to clamp the three-pronged universal joint, which solves the problem of difficulty in effectively clamping the three-pronged universal joint and the instability and falling of the three-pronged universal joint during the clamping process.

[0004] However, in the process of using a special fixture for machining the fork end face of a three-pronged universal joint according to an existing patent, when pushing the fixture base and the U-shaped clamp, three sets of adjusting screws need to be rotated in sequence, making the clamping of the universal joint extremely troublesome. Utility Model Content

[0005] The purpose of the utility model is to provide a clamp for processing universal joints, which solves the problem that in the prior art, when pushing the clamp base and the U-shaped clamp block, three sets of adjusting screws need to be rotated in sequence, making the clamping of the universal joint extremely troublesome.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0007] The utility model provides a clamp for processing universal joints, including a clamp seat, a support rod and a clamping block, the support rod is fixedly mounted on the clamp seat, the clamp seat is provided with a guide groove, and also includes a clamping device, the clamping device includes a sliding frame, a first gear, a gear ring, a transmission shaft, a transmission assembly and a rotating assembly, the transmission shaft is rotatably mounted in the clamp seat, passes through the clamp seat and extends into the guide groove, the first gear is fixedly mounted on the transmission shaft and is located in the clamp seat, the transmission assembly is mounted on the transmission shaft, the sliding frame is slidably mounted on the clamp seat through the transmission assembly and is located in the guide groove, the clamping block is fixedly mounted on the sliding frame, the gear ring is rotatably mounted in the clamp seat through the rotating assembly, and meshes with the first gear.

[0008] Wherein, the transmission assembly includes a second gear and a rack, the second gear is fixedly mounted on the transmission shaft and located at an end of the transmission shaft away from the first gear; the rack is fixedly mounted on the sliding frame and meshes with the second gear.

[0009] Wherein, the clamping block further comprises an anti-sliding block, and the anti-sliding block is fixedly mounted on the clamping block.

[0010] Wherein, the rotating assembly includes a rotating disk and a driving shaft, the driving shaft is rotatably mounted on the clamp seat, and passes through the clamp seat and extends to the outside of the clamp seat; the rotating disk is fixedly mounted on the driving shaft and is located in the clamp seat, and the gear ring is sleeved on the rotating disk and fixedly connected to the rotating disk.

[0011] Wherein, the rotating assembly further comprises a driving knob, and the driving knob is fixedly mounted on the driving shaft and located outside the clamp seat.

[0012] The gear wheel is connected with the three-pronged chain wheel to form a circle, and the two-pronged chain wheel is connected with the three-pronged chain wheel to form a circle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of a clamp for machining a universal joint according to the first embodiment of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the clamping device of the first embodiment of the utility model.

[0016] Figure 3 It is a schematic diagram of the connection between the clamping block and the anti-sliding block of the first embodiment of the utility model.

[0017] Figure 4It is a schematic diagram of the connection between the rack and the second gear in the first embodiment of the utility model.

[0018] Figure 5 It is a schematic diagram of the overall structure of a clamp for machining a universal joint according to the second embodiment of the utility model.

[0019] In the figure: 101-clamp seat, 102-support rod, 103-clamping block, 104-sliding frame, 105-first gear, 106-gear ring, 107-transmission shaft, 108-guide groove, 109-second gear, 110-rack, 111-anti-sliding block, 201-rotating disk, 202-driving shaft, 203-driving knob. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Embodiment 1:

[0022] like Figure 1-4 As shown, Figure 1 This is a schematic diagram of the overall structure of a clamp for machining a universal joint according to the first embodiment of the utility model. Figure 2 It is a schematic structural diagram of the clamping device of the first embodiment of the utility model. Figure 3 This is a schematic diagram of the connection between the clamping block and the anti-sliding block of the first embodiment of the utility model. Figure 4 It is a schematic diagram of the connection between the rack and the second gear in the first embodiment of the utility model.

[0023] The utility model provides a clamp for processing universal joints: it includes a clamp seat 101, a support rod 102 and a clamping block 103, and also includes a clamping device, the clamping device includes a sliding frame 104, a first gear 105, a ring gear 106, a transmission shaft 107, a transmission assembly and a rotating assembly, the transmission assembly includes a second gear 109 and a rack 110, and the clamping block 103 also includes an anti-sliding block 111. The above-mentioned scheme solves the problem that the above-mentioned existing patent needs to rotate three groups of adjusting screws in sequence when pushing the clamp base and the U-shaped clamping block, making the clamping of the universal joint extremely troublesome. It can be understood that this scheme can also be used to solve the problem of driving the ring gear to rotate.

[0024] In this embodiment, driven by the rotating assembly, the ring gear 106 drives the three groups of the first gears 105 and the three groups of the transmission shafts 107 to rotate simultaneously by meshing with the three groups of the first gears 105. Under the power transmission of the transmission assembly, the clamping blocks 103 on the three groups of the sliding frames 104 move toward the universal joint along the guide groove 108 at the same time and clamp the universal joint, so that the clamping of the universal joint is more convenient by synchronously driving the three groups of the clamping blocks 103.

[0025] The transmission shaft 107 is rotatably mounted in the fixture seat 101, and passes through the fixture seat 101 and extends into the guide groove 108. The first gear 105 is fixedly mounted on the transmission shaft 107 and is located in the fixture seat 101. The transmission assembly is mounted on the transmission shaft 107. The sliding frame 104 is slidably mounted on the fixture seat 101 through the transmission assembly and is located in the guide groove 108. The clamping block 103 is fixedly mounted on the sliding frame 104. The gear ring 106 is rotatably mounted in the fixture seat 101 through the rotating assembly and meshes with the first gear 105. The fixture seat 101 is disc-shaped and has a hollow structure inside. The support rod 102 is welded to the bottom of the fixture seat 101. The bottom end of the support rod 102 is provided with a fixing plate for fixing. The number of the guide grooves 108 is three groups and is annularly distributed on the fixture seat 101. The number of the sliding frame 104, the first gear 105, the transmission shaft 107 and the transmission assembly is The guide grooves 108 are arranged in three groups, and the distribution of the guide grooves 108 is the same as that of the three groups. The sliding frame 104 is a U-shaped structure with an opening facing downward. The clamping block 103 is in an arc shape and is welded to the upper surface of the sliding frame 104. The transmission shaft 107 is rotatably mounted in the fixture seat 101 through a bearing. The first gear 105 is located at the bottom of the transmission shaft 107. The gear ring 106 is an annular structure with multiple groups of teeth on its outer wall. When in use, the gear ring 106 is driven to rotate by the rotating assembly. 106 drives the three groups of the first gears 105 to rotate simultaneously by meshing with the three groups of the first gears 105. The first gears 105 transmit power through the transmission assembly, so that the sliding frame 104 and the clamping block 103 move along the guide groove 108 toward the direction of the universal joint until they abut against the universal joint. The universal joint is clamped with the cooperation of the three groups of the clamping blocks 103, and the three groups of the clamping blocks 103 are driven synchronously, thereby making the clamping of the universal joint more convenient.

[0026] Secondly, the second gear 109 is fixedly mounted on the transmission shaft 107 and is located at the end of the transmission shaft 107 away from the first gear 105; the rack 110 is fixedly mounted on the sliding frame 104 and meshes with the second gear 109. The second gear 109 is located at the upper end of the transmission shaft 107, and the rack 110 is welded in the sliding frame 104. The meshing transmission between the rack 110 and the second gear 109 enables the rotation of the transmission shaft 107 to drive the sliding frame 104 to move.

[0027] Again, the anti-sliding block 111 is fixedly installed on the clamping block 103. The anti-sliding block 111 is made of rubber material. The anti-sliding block 111 is an arc-shaped structure and is fixed to the inner side of the recess of the clamping block 103 by gluing. Through the setting of the anti-sliding block 111, the clamping block 103 clamps the universal joint more stably.

[0028] In this embodiment, when in use, the three-pronged universal joint is placed at the center of the fixture seat 101, and then the ring gear 106 is driven to rotate through the rotating assembly. The ring gear 106 is meshed with the three groups of the first gears 105 at the same time. The rotation of the ring gear 106 drives the three groups of the first gears 105 to rotate simultaneously through the meshing. The rotation of the first gear 105 rotates in the fixture seat 101 through the transmission shaft 107 fixedly connected thereto, and the transmission shaft 107 drives the second gear 109 to rotate. The second gear 109 is meshed with the first gears 105. The rack 110 is meshed with the rack 110, and the rack 110 is fixedly mounted on the sliding frame 104. The rotation of the second gear 109 drives the sliding frame 104 to move along the guide groove 108 toward the direction of the universal joint through the meshing with the rack 110. The movement of the sliding frame 104 drives the clamping block 103 to move accordingly until it abuts against the universal joint, thereby achieving the clamping of the universal joint with the cooperation of the three groups of the clamping blocks 103, and achieving the synchronous driving of the three groups of the clamping blocks 103, thereby making the clamping of the universal joint more convenient.

[0029] Embodiment 2:

[0030] like Figure 5 As shown, Figure 5 It is a schematic diagram of the overall structure of a clamp for processing universal joints according to the second embodiment of the utility model. On the basis of the first embodiment, the clamp for processing universal joints according to this embodiment also includes a rotating component, which includes a rotating disk 201 and a driving shaft 202, and the rotating component also includes a driving knob 203.

[0031] In this embodiment, the rotation effect of the ring gear 106 is achieved through the cooperation between the driving shaft 202 and the rotating disk 201.

[0032] Among them, the driving shaft 202 is rotatably mounted on the clamp seat 101, and passes through the clamp seat 101 and extends to the outside of the clamp seat 101; the rotating disk 201 is fixedly mounted on the driving shaft 202 and is located in the clamp seat 101, the ring gear 106 is sleeved on the rotating disk 201 and fixedly connected to the rotating disk 201, the driving disk is welded on the inner side of the ring gear 106, the axis of the driving disk and the ring gear 106 coincide, and the driving shaft 202 is rotatably mounted on the clamp seat 101 through a bearing. When in use, the driving shaft 202 is rotated to make the rotating disk 201 rotate around the axis of the driving shaft 202, and the rotation of the rotating disk 201 drives the ring gear 106 to rotate, thereby achieving a rotation effect on the ring gear 106.

[0033] Secondly, the driving knob 203 is fixedly mounted on the driving shaft 202 and is located outside the clamp seat 101. The driving knob 203 is welded to the bottom end of the driving shaft 202. The setting of the driving knob 203 makes it easier to apply force to the driving shaft 202.

[0034] In this embodiment, when in use, the driving shaft 202 is rotated to make the rotating disk 201 rotate around the axis of the driving shaft 202 , and the rotation of the rotating disk 201 drives the ring gear 106 to rotate, thereby achieving a rotation effect on the ring gear 106 .

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A fixture for machining a universal joint, comprising a fixture seat, a support rod and a clamping block, wherein the support rod is fixedly mounted on the fixture seat, and a guide groove is provided on the fixture seat. Features: Also included is a clamping device; The clamping device includes a sliding frame, a first gear, a ring gear, a transmission shaft, a transmission assembly and a rotating assembly. The transmission shaft is rotatably mounted in the fixture seat and passes through the fixture seat to extend into the guide groove. The first gear is fixedly mounted on the transmission shaft and is located in the fixture seat. The transmission assembly is mounted on the transmission shaft. The sliding frame is slidably mounted on the fixture seat through the transmission assembly and is located in the guide groove. The clamping block is fixedly mounted on the sliding frame. The ring gear is rotatably mounted in the fixture seat through the rotating assembly and is meshed with the first gear.

2. The universal joint processing jig according to claim 1, Features: The transmission assembly includes a second gear and a rack. The second gear is fixedly mounted on the transmission shaft and is located at an end of the transmission shaft away from the first gear. The rack is fixedly mounted on the sliding frame and meshes with the second gear.

3. The universal joint processing jig according to claim 1, Features: The clamping block also includes an anti-sliding block, and the anti-sliding block is fixedly mounted on the clamping block.

4. The universal joint processing jig according to claim 1, Features: The rotating assembly includes a rotating disk and a driving shaft, wherein the driving shaft is rotatably mounted on the clamp seat and extends through the clamp seat to the outside of the clamp seat; the rotating disk is fixedly mounted on the driving shaft and is located in the clamp seat, and the gear ring is sleeved on the rotating disk and fixedly connected to the rotating disk.

5. The universal joint processing jig according to claim 4, Features: The rotating assembly also includes a driving knob, which is fixedly mounted on the driving shaft and located outside the clamp seat.

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